23020021011 has 32 divisors (see below), whose sum is σ = 35132106240. Its totient is φ = 13282066944.

The previous prime is 23020020997. The next prime is 23020021027. The reversal of 23020021011 is 11012002032.

It is not a de Polignac number, because 23020021011 - 2¹⁷ = 23019889939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23020026011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108360 + ... + 240378.

It is an arithmetic number, because the mean of its divisors is an integer number (1097878320).

Almost surely, 2^23020021011 is an apocalyptic number.

23020021011 is a deficient number, since it is larger than the sum of its proper divisors (12112085229).

23020021011 is a wasteful number, since it uses less digits than its factorization.

23020021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132315.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23020021011 its reverse (11012002032), we get a palindrome (34032023043).

The spelling of 23020021011 in words is "twenty-three billion, twenty million, twenty-one thousand, eleven".