23031040430421 has 32 divisors (see below), whose sum is σ = 34402898949120. Its totient is φ = 15227152813872.

The previous prime is 23031040430417. The next prime is 23031040430441. The reversal of 23031040430421 is 12403404013032.

23031040430421 is a `hidden beast` number, since 2 + 3 + 0 + 310 + 40 + 4 + 304 + 2 + 1 = 666.

It is not a de Polignac number, because 23031040430421 - 2² = 23031040430417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031040430441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3547665 + ... + 7658198.

It is an arithmetic number, because the mean of its divisors is an integer number (1075090592160).

Almost surely, 2^{23031040430421} is an apocalyptic number.

It is an amenable number.

23031040430421 is a deficient number, since it is larger than the sum of its proper divisors (11371858518699).

23031040430421 is a wasteful number, since it uses less digits than its factorization.

23031040430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11206502 (or 11206496 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 23031040430421 its reverse (12403404013032), we get a palindrome (35434444443453).

The spelling of 23031040430421 in words is "twenty-three trillion, thirty-one billion, forty million, four hundred thirty thousand, four hundred twenty-one".