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1030111212000 = 253531323287099
BaseRepresentation
bin11101111110101110110…
…10011011000111100000
310122110220012222111001010
432333113122123013200
5113334131432241000
62105120534140520
7134265054555063
oct16772732330740
93573805874033
101030111212000
1136795aa19172
121477861b1740
13761a66cb850
1437c015608da
151bbe000bd50
hexefd769b1e0

1030111212000 has 384 divisors, whose sum is σ = 3792255667200. Its totient is φ = 242540390400.

The previous prime is 1030111211999. The next prime is 1030111212007. The reversal of 1030111212000 is 2121110301.

It is a super-2 number, since 2×10301112120002 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030111212007) 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, 3444451 + ... + 3731549.

It is an arithmetic number, because the mean of its divisors is an integer number (9875665800).

Almost surely, 21030111212000 is an apocalyptic number.

1030111212000 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 1030111212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896127833600).

1030111212000 is an abundant number, since it is smaller than the sum of its proper divisors (2762144455200).

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

1030111212000 is a wasteful number, since it uses less digits than its factorization.

1030111212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287163 (or 287145 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1030111212000 its reverse (2121110301), we get a palindrome (1032232322301).

The spelling of 1030111212000 in words is "one trillion, thirty billion, one hundred eleven million, two hundred twelve thousand".