23012511311421 has 12 divisors (see below), whose sum is σ = 33947534417472. Its totient is φ = 15015255607176.

The previous prime is 23012511311411. The next prime is 23012511311431. The reversal of 23012511311421 is 12411311521032.

23012511311421 is a `hidden beast` number, since 2 + 3 + 0 + 1 + 2 + 511 + 3 + 1 + 142 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (23012511311411) and next prime (23012511311431).

It is not a de Polignac number, because 23012511311421 - 2⁵ = 23012511311389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012511311411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27201549591 + ... + 27201550436.

It is an arithmetic number, because the mean of its divisors is an integer number (2828961201456).

Almost surely, 2^{23012511311421} is an apocalyptic number.

It is an amenable number.

23012511311421 is a deficient number, since it is larger than the sum of its proper divisors (10935023106051).

23012511311421 is a wasteful number, since it uses less digits than its factorization.

23012511311421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54403100080 (or 54403100077 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 23012511311421 its reverse (12411311521032), we get a palindrome (35423822832453).

The spelling of 23012511311421 in words is "twenty-three trillion, twelve billion, five hundred eleven million, three hundred eleven thousand, four hundred twenty-one".