23021110011 has 16 divisors (see below), whose sum is σ = 32375120000. Its totient is φ = 14510492928.

The previous prime is 23021110009. The next prime is 23021110033. The reversal of 23021110011 is 11001112032.

It is not a de Polignac number, because 23021110011 - 2¹ = 23021110009 is a prime.

It is a super-2 number, since 2×23021110011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23021110061) 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, 376246 + ... + 433131.

It is an arithmetic number, because the mean of its divisors is an integer number (2023445000).

Almost surely, 2^23021110011 is an apocalyptic number.

23021110011 is a deficient number, since it is larger than the sum of its proper divisors (9354009989).

23021110011 is a wasteful number, since it uses less digits than its factorization.

23021110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809898.

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

Adding to 23021110011 its reverse (11001112032), we get a palindrome (34022222043).

The spelling of 23021110011 in words is "twenty-three billion, twenty-one million, one hundred ten thousand, eleven".