100040232031 has 4 divisors (see below), whose sum is σ = 100041804000. Its totient is φ = 100038660064.

The previous prime is 100040232007. The next prime is 100040232059. The reversal of 100040232031 is 130232040001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130232040001 = 7 ⋅18604577143.

It is a cyclic number.

It is not a de Polignac number, because 100040232031 - 2²⁵ = 100006677599 is a prime.

It is a super-2 number, since 2×100040232031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100040231996 and 100040232014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100040232431) 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, 686311 + ... + 819208.

It is an arithmetic number, because the mean of its divisors is an integer number (25010451000).

Almost surely, 2^100040232031 is an apocalyptic number.

100040232031 is a deficient number, since it is larger than the sum of its proper divisors (1571969).

100040232031 is an equidigital number, since it uses as much as digits as its factorization.

100040232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571968.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100040232031 its reverse (130232040001), we get a palindrome (230272272032).

The spelling of 100040232031 in words is "one hundred billion, forty million, two hundred thirty-two thousand, thirty-one".