232012031021 has 4 divisors (see below), whose sum is σ = 238282626492. Its totient is φ = 225741435552.

The previous prime is 232012030979. The next prime is 232012031101. The reversal of 232012031021 is 120130210232.

232012031021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204783400900 + 27228630121 = 452530^2 + 165011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232012031021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232012031921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3135297680 + ... + 3135297753.

It is an arithmetic number, because the mean of its divisors is an integer number (59570656623).

Almost surely, 2^232012031021 is an apocalyptic number.

It is an amenable number.

232012031021 is a deficient number, since it is larger than the sum of its proper divisors (6270595471).

232012031021 is an equidigital number, since it uses as much as digits as its factorization.

232012031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270595470.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 232012031021 its reverse (120130210232), we get a palindrome (352142241253).

The spelling of 232012031021 in words is "two hundred thirty-two billion, twelve million, thirty-one thousand, twenty-one".