23210131431 has 4 divisors (see below), whose sum is σ = 30946841912. Its totient is φ = 15473420952.

The previous prime is 23210131429. The next prime is 23210131463. The reversal of 23210131431 is 13413101232.

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

It is not a de Polignac number, because 23210131431 - 2¹ = 23210131429 is a prime.

It is a super-2 number, since 2×23210131431² (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 = 23210131398 and 23210131407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210130431) 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, 3868355236 + ... + 3868355241.

It is an arithmetic number, because the mean of its divisors is an integer number (7736710478).

Almost surely, 2^23210131431 is an apocalyptic number.

23210131431 is a deficient number, since it is larger than the sum of its proper divisors (7736710481).

23210131431 is an equidigital number, since it uses as much as digits as its factorization.

23210131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736710480.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23210131431 its reverse (13413101232), we get a palindrome (36623232663).

The spelling of 23210131431 in words is "twenty-three billion, two hundred ten million, one hundred thirty-one thousand, four hundred thirty-one".