23440031031 has 8 divisors (see below), whose sum is σ = 31254090624. Its totient is φ = 15626329400.

The previous prime is 23440031011. The next prime is 23440031033. The reversal of 23440031031 is 13013004432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23440031031 - 2⁹ = 23440030519 is a prime.

It is a super-2 number, since 2×23440031031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23440030989 and 23440031007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440031033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174856 + ... + 278306.

It is an arithmetic number, because the mean of its divisors is an integer number (3906761328).

Almost surely, 2^23440031031 is an apocalyptic number.

23440031031 is a deficient number, since it is larger than the sum of its proper divisors (7814059593).

23440031031 is a wasteful number, since it uses less digits than its factorization.

23440031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178981.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23440031031 its reverse (13013004432), we get a palindrome (36453035463).

The spelling of 23440031031 in words is "twenty-three billion, four hundred forty million, thirty-one thousand, thirty-one".