23110031431 has 4 divisors (see below), whose sum is σ = 23110546432. Its totient is φ = 23109516432.

The previous prime is 23110031419. The next prime is 23110031453. The reversal of 23110031431 is 13413001132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23110031431 - 2²⁷ = 22975813703 is a prime.

It is a super-2 number, since 2×23110031431² (a number of 22 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 = 23110031399 and 23110031408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110032431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183006 + ... + 282331.

It is an arithmetic number, because the mean of its divisors is an integer number (5777636608).

Almost surely, 2^23110031431 is an apocalyptic number.

23110031431 is a deficient number, since it is larger than the sum of its proper divisors (515001).

23110031431 is an equidigital number, since it uses as much as digits as its factorization.

23110031431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515000.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23110031431 its reverse (13413001132), we get a palindrome (36523032563).

The spelling of 23110031431 in words is "twenty-three billion, one hundred ten million, thirty-one thousand, four hundred thirty-one".