101123103231 has 12 divisors (see below), whose sum is σ = 146093435280. Its totient is φ = 67403064960.

The previous prime is 101123103181. The next prime is 101123103253. The reversal of 101123103231 is 132301321101.

101123103231 is a `hidden beast` number, since 10 + 112 + 310 + 3 + 231 = 666.

It is not a de Polignac number, because 101123103231 - 2⁶ = 101123103167 is a prime.

It is a super-2 number, since 2×101123103231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101123103271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976050 + ... + 1074671.

It is an arithmetic number, because the mean of its divisors is an integer number (12174452940).

Almost surely, 2^101123103231 is an apocalyptic number.

101123103231 is a deficient number, since it is larger than the sum of its proper divisors (44970332049).

101123103231 is a wasteful number, since it uses less digits than its factorization.

101123103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056206 (or 2056203 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 101123103231 its reverse (132301321101), we get a palindrome (233424424332).

The spelling of 101123103231 in words is "one hundred one billion, one hundred twenty-three million, one hundred three thousand, two hundred thirty-one".