23132013133021 has 4 divisors (see below), whose sum is σ = 24911398758652. Its totient is φ = 21352627507392.

The previous prime is 23132013133003. The next prime is 23132013133043. The reversal of 23132013133021 is 12033131023132.

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 11842339212900 + 11289673920121 = 3441270^2 + 3360011^2 .

It is a cyclic number.

It is not a de Polignac number, because 23132013133021 - 2³⁹ = 22582257319133 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 (23132013133001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889692812796 + ... + 889692812821.

It is an arithmetic number, because the mean of its divisors is an integer number (6227849689663).

Almost surely, 2^{23132013133021} is an apocalyptic number.

It is an amenable number.

23132013133021 is a deficient number, since it is larger than the sum of its proper divisors (1779385625631).

23132013133021 is a wasteful number, since it uses less digits than its factorization.

23132013133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779385625630.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 23132013133021 its reverse (12033131023132), we get a palindrome (35165144156153).

The spelling of 23132013133021 in words is "twenty-three trillion, one hundred thirty-two billion, thirteen million, one hundred thirty-three thousand, twenty-one".