23013021111 has 8 divisors (see below), whose sum is σ = 30764144640. Its totient is φ = 15301955832.

The previous prime is 23013021071. The next prime is 23013021113. The reversal of 23013021111 is 11112031032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23013021111 - 2¹¹ = 23013019063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10013221 + ... + 10015518.

It is an arithmetic number, because the mean of its divisors is an integer number (3845518080).

Almost surely, 2^23013021111 is an apocalyptic number.

23013021111 is a deficient number, since it is larger than the sum of its proper divisors (7751123529).

23013021111 is a wasteful number, since it uses less digits than its factorization.

23013021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20029125.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 23013021111 its reverse (11112031032), we get a palindrome (34125052143).

The spelling of 23013021111 in words is "twenty-three billion, thirteen million, twenty-one thousand, one hundred eleven".