23223201231021 has 48 divisors (see below), whose sum is σ = 35215988465280. Its totient is φ = 13586532220800.

The previous prime is 23223201231017. The next prime is 23223201231047. The reversal of 23223201231021 is 12013210232232.

It is not a de Polignac number, because 23223201231021 - 2² = 23223201231017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23223201230982 and 23223201231000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223201231091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51388911 + ... + 51838851.

It is an arithmetic number, because the mean of its divisors is an integer number (733666426360).

Almost surely, 2^{23223201231021} is an apocalyptic number.

It is an amenable number.

23223201231021 is a deficient number, since it is larger than the sum of its proper divisors (11992787234259).

23223201231021 is a wasteful number, since it uses less digits than its factorization.

23223201231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454898 (or 454887 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23223201231021 its reverse (12013210232232), we get a palindrome (35236411463253).

The spelling of 23223201231021 in words is "twenty-three trillion, two hundred twenty-three billion, two hundred one million, two hundred thirty-one thousand, twenty-one".