1232013021 has 16 divisors (see below), whose sum is σ = 1680307200. Its totient is φ = 802586288.

The previous prime is 1232012989. The next prime is 1232013031. The reversal of 1232013021 is 1203102321.

It is not a de Polignac number, because 1232013021 - 2⁵ = 1232012989 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 (1232013031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86290 + ... + 99548.

It is an arithmetic number, because the mean of its divisors is an integer number (105019200).

Almost surely, 2^1232013021 is an apocalyptic number.

It is an amenable number.

1232013021 is a deficient number, since it is larger than the sum of its proper divisors (448294179).

1232013021 is a wasteful number, since it uses less digits than its factorization.

1232013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13968.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1232013021 is about 35100.0430341617. The cubic root of 1232013021 is about 1072.0254589098.

Adding to 1232013021 its reverse (1203102321), we get a palindrome (2435115342).

The spelling of 1232013021 in words is "one billion, two hundred thirty-two million, thirteen thousand, twenty-one".