23033320131021 has 4 divisors (see below), whose sum is σ = 30711093508032. Its totient is φ = 15355546754012.

The previous prime is 23033320131001. The next prime is 23033320131037. The reversal of 23033320131021 is 12013102333032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23033320131021 - 2²⁵ = 23033286576589 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23033320130982 and 23033320131000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23033320131001) 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, 3838886688501 + ... + 3838886688506.

It is an arithmetic number, because the mean of its divisors is an integer number (7677773377008).

Almost surely, 2^{23033320131021} is an apocalyptic number.

It is an amenable number.

23033320131021 is a deficient number, since it is larger than the sum of its proper divisors (7677773377011).

23033320131021 is an equidigital number, since it uses as much as digits as its factorization.

23033320131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677773377010.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 23033320131021 its reverse (12013102333032), we get a palindrome (35046422464053).

The spelling of 23033320131021 in words is "twenty-three trillion, thirty-three billion, three hundred twenty million, one hundred thirty-one thousand, twenty-one".