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10031312211031 = 22214516574611
BaseRepresentation
bin1001000111111001100011…
…0011010000110001010111
31022111222120101200101100001
42101332120303100301113
52303323111411223111
633200153214232131
72053511160632266
oct221763063206127
938458511611301
1010031312211031
11321828a255681
1211601761b5647
13579c44342647
142697379565dd
15125e0dd701c1
hex91f98cd0c57

10031312211031 has 4 divisors (see below), whose sum is σ = 10035828787864. Its totient is φ = 10026795634200.

The previous prime is 10031312211029. The next prime is 10031312211083. The reversal of 10031312211031 is 13011221313001.

10031312211031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10031312211031 - 21 = 10031312211029 is a prime.

It is a super-2 number, since 2×100313122110312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031312211631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258285085 + ... + 2258289526.

It is an arithmetic number, because the mean of its divisors is an integer number (2508957196966).

Almost surely, 210031312211031 is an apocalyptic number.

10031312211031 is a deficient number, since it is larger than the sum of its proper divisors (4516576833).

10031312211031 is an equidigital number, since it uses as much as digits as its factorization.

10031312211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516576832.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 10031312211031 its reverse (13011221313001), we get a palindrome (23042533524032).

The spelling of 10031312211031 in words is "ten trillion, thirty-one billion, three hundred twelve million, two hundred eleven thousand, thirty-one".

Divisors: 1 2221 4516574611 10031312211031