23031020030421 has 16 divisors (see below), whose sum is σ = 33082800145920. Its totient is φ = 14167527887040.

The previous prime is 23031020030353. The next prime is 23031020030429. The reversal of 23031020030421 is 12403002013032.

It is not a de Polignac number, because 23031020030421 - 2⁹ = 23031020029909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031020030429) 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, 112553061 + ... + 112757498.

It is an arithmetic number, because the mean of its divisors is an integer number (2067675009120).

Almost surely, 2^{23031020030421} is an apocalyptic number.

It is an amenable number.

23031020030421 is a deficient number, since it is larger than the sum of its proper divisors (10051780115499).

23031020030421 is a wasteful number, since it uses less digits than its factorization.

23031020030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225313196.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23031020030421 its reverse (12403002013032), we get a palindrome (35434022043453).

The spelling of 23031020030421 in words is "twenty-three trillion, thirty-one billion, twenty million, thirty thousand, four hundred twenty-one".