1232113320021 has 16 divisors (see below), whose sum is σ = 1661799572928. Its totient is φ = 811966771200.

The previous prime is 1232113320013. The next prime is 1232113320071. The reversal of 1232113320021 is 1200233112321.

It is not a de Polignac number, because 1232113320021 - 2³ = 1232113320013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232113320021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232113320001) 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, 5998510 + ... + 6200511.

It is an arithmetic number, because the mean of its divisors is an integer number (103862473308).

Almost surely, 2^{1232113320021} is an apocalyptic number.

It is an amenable number.

1232113320021 is a deficient number, since it is larger than the sum of its proper divisors (429686252907).

1232113320021 is a wasteful number, since it uses less digits than its factorization.

1232113320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199412.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1232113320021 its reverse (1200233112321), we get a palindrome (2432346432342).

The spelling of 1232113320021 in words is "one trillion, two hundred thirty-two billion, one hundred thirteen million, three hundred twenty thousand, twenty-one".