23312400421331 has 16 divisors (see below), whose sum is σ = 28210093747200. Its totient is φ = 18806555548800.

The previous prime is 23312400421283. The next prime is 23312400421333. The reversal of 23312400421331 is 13312400421332.

It is a cyclic number.

It is not a de Polignac number, because 23312400421331 - 2⁶ = 23312400421267 is a prime.

It is a super-2 number, since 2×23312400421331² (a number of 28 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 = 23312400421294 and 23312400421303.

It is not an unprimeable number, because it can be changed into a prime (23312400421333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42550070 + ... + 43094468.

It is an arithmetic number, because the mean of its divisors is an integer number (1763130859200).

Almost surely, 2^{23312400421331} is an apocalyptic number.

23312400421331 is a deficient number, since it is larger than the sum of its proper divisors (4897693325869).

23312400421331 is a wasteful number, since it uses less digits than its factorization.

23312400421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904274.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 23312400421331 its reverse (13312400421332), we get a palindrome (36624800842663).

Subtracting from 23312400421331 its reverse (13312400421332), we obtain a palindrome (9999999999999).

The spelling of 23312400421331 in words is "twenty-three trillion, three hundred twelve billion, four hundred million, four hundred twenty-one thousand, three hundred thirty-one".