23431362620413 has 4 divisors (see below), whose sum is σ = 25561486495008. Its totient is φ = 21301238745820.

The previous prime is 23431362620389. The next prime is 23431362620423. The reversal of 23431362620413 is 31402626313432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23431362620413 - 2¹⁷ = 23431362489341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431362620423) 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, 1065061937281 + ... + 1065061937302.

It is an arithmetic number, because the mean of its divisors is an integer number (6390371623752).

Almost surely, 2^{23431362620413} is an apocalyptic number.

It is an amenable number.

23431362620413 is a deficient number, since it is larger than the sum of its proper divisors (2130123874595).

23431362620413 is a wasteful number, since it uses less digits than its factorization.

23431362620413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130123874594.

The product of its (nonzero) digits is 373248, while the sum is 40.

Adding to 23431362620413 its reverse (31402626313432), we get a palindrome (54833988933845).

The spelling of 23431362620413 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred sixty-two million, six hundred twenty thousand, four hundred thirteen".