101111231123 has 16 divisors (see below), whose sum is σ = 115735431360. Its totient is φ = 86532074496.

The previous prime is 101111231113. The next prime is 101111231167. The reversal of 101111231123 is 321132111101.

It is not a de Polignac number, because 101111231123 - 2¹² = 101111227027 is a prime.

It is a super-2 number, since 2×101111231123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101111231113) 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, 18594161 + ... + 18599597.

It is an arithmetic number, because the mean of its divisors is an integer number (7233464460).

Almost surely, 2^101111231123 is an apocalyptic number.

101111231123 is a deficient number, since it is larger than the sum of its proper divisors (14624200237).

101111231123 is a wasteful number, since it uses less digits than its factorization.

101111231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9086.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 101111231123 its reverse (321132111101), we get a palindrome (422243342224).

The spelling of 101111231123 in words is "one hundred one billion, one hundred eleven million, two hundred thirty-one thousand, one hundred twenty-three".