23213113011 has 48 divisors (see below), whose sum is σ = 36969929568. Its totient is φ = 13918694400.

The previous prime is 23213113003. The next prime is 23213113019. The reversal of 23213113011 is 11031131232.

23213113011 is a `hidden beast` number, since 2 + 321 + 311 + 30 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (23213113003) and next prime (23213113019).

It is not a de Polignac number, because 23213113011 - 2³ = 23213113003 is a prime.

It is a super-2 number, since 2×23213113011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23213113019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3742765 + ... + 3748961.

It is an arithmetic number, because the mean of its divisors is an integer number (770206866).

Almost surely, 2^23213113011 is an apocalyptic number.

23213113011 is a deficient number, since it is larger than the sum of its proper divisors (13756816557).

23213113011 is a wasteful number, since it uses less digits than its factorization.

23213113011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612 (or 6609 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23213113011 its reverse (11031131232), we get a palindrome (34244244243).

The spelling of 23213113011 in words is "twenty-three billion, two hundred thirteen million, one hundred thirteen thousand, eleven".