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10030111031220 = 22357412712149331
BaseRepresentation
bin1001000111110101000100…
…1101000111111110110100
31022111212110200110010101220
42101331101031013332310
52303313131410444340
633155434104550340
72053436334031320
oct221752115077664
938455420403356
1010030111031220
113217823213495
12115ba9ba823b0
13579ab2527167
142696621da980
15125d8d69eed0
hex91f51347fb4

10030111031220 has 192 divisors, whose sum is σ = 33000534024192. Its totient is φ = 2228425344000.

The previous prime is 10030111031207. The next prime is 10030111031221. The reversal of 10030111031220 is 2213011103001.

It is a happy number.

It is a super-2 number, since 2×100301110312202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10030111031220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10030111031221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3591955 + ... + 5741285.

It is an arithmetic number, because the mean of its divisors is an integer number (171877781376).

Almost surely, 210030111031220 is an apocalyptic number.

10030111031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10030111031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16500267012096).

10030111031220 is an abundant number, since it is smaller than the sum of its proper divisors (22970422992972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10030111031220 is a wasteful number, since it uses less digits than its factorization.

10030111031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149662 (or 2149660 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10030111031220 its reverse (2213011103001), we get a palindrome (12243122134221).

The spelling of 10030111031220 in words is "ten trillion, thirty billion, one hundred eleven million, thirty-one thousand, two hundred twenty".