23013220002021 has 6 divisors (see below), whose sum is σ = 33241317780710. Its totient is φ = 15342146668008.

The previous prime is 23013220001971. The next prime is 23013220002023. The reversal of 23013220002021 is 12020002231032.

23013220002021 is a `hidden beast` number, since 2 + 301 + 322 + 0 + 0 + 0 + 20 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20080526076900 + 2932693925121 = 4481130^2 + 1712511^2 .

It is not a de Polignac number, because 23013220002021 - 2⁴³ = 14217126979813 is a prime.

It is a super-2 number, since 2×23013220002021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23013220001985 and 23013220002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013220002023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1278512222326 + ... + 1278512222343.

Almost surely, 2^{23013220002021} is an apocalyptic number.

It is an amenable number.

23013220002021 is a deficient number, since it is larger than the sum of its proper divisors (10228097778689).

23013220002021 is a wasteful number, since it uses less digits than its factorization.

23013220002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557024444675 (or 2557024444672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23013220002021 its reverse (12020002231032), we get a palindrome (35033222233053).

The spelling of 23013220002021 in words is "twenty-three trillion, thirteen billion, two hundred twenty million, two thousand, twenty-one".