1232423232021 has 12 divisors (see below), whose sum is σ = 1780197464448. Its totient is φ = 821601377064.

The previous prime is 1232423231981. The next prime is 1232423232023. The reversal of 1232423232021 is 1202323242321.

1232423232021 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 423 + 232 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 1232423232021 - 2⁶ = 1232423231957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232423232023) 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, 608355 + ... + 1683728.

It is an arithmetic number, because the mean of its divisors is an integer number (148349788704).

Almost surely, 2^{1232423232021} is an apocalyptic number.

It is an amenable number.

1232423232021 is a deficient number, since it is larger than the sum of its proper divisors (547774232427).

1232423232021 is a wasteful number, since it uses less digits than its factorization.

1232423232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351832 (or 2351829 counting only the distinct ones).

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

Adding to 1232423232021 its reverse (1202323242321), we get a palindrome (2434746474342).

The spelling of 1232423232021 in words is "one trillion, two hundred thirty-two billion, four hundred twenty-three million, two hundred thirty-two thousand, twenty-one".