100123013311231 has 16 divisors (see below), whose sum is σ = 101359204925440. Its totient is φ = 98893880255520.

The previous prime is 100123013311199. The next prime is 100123013311271. The reversal of 100123013311231 is 132113310321001.

It is a cyclic number.

It is not a de Polignac number, because 100123013311231 - 2⁵ = 100123013311199 is a prime.

It is a super-2 number, since 2×100123013311231² (a number of 29 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 (100123013311271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438777490 + ... + 439005616.

It is an arithmetic number, because the mean of its divisors is an integer number (6334950307840).

Almost surely, 2^{100123013311231} is an apocalyptic number.

100123013311231 is a deficient number, since it is larger than the sum of its proper divisors (1236191614209).

100123013311231 is a wasteful number, since it uses less digits than its factorization.

100123013311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243574.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 100123013311231 its reverse (132113310321001), we get a palindrome (232236323632232).

The spelling of 100123013311231 in words is "one hundred trillion, one hundred twenty-three billion, thirteen million, three hundred eleven thousand, two hundred thirty-one".