23013313211 has 4 divisors (see below), whose sum is σ = 26300929392. Its totient is φ = 19725697032.

The previous prime is 23013313201. The next prime is 23013313231. The reversal of 23013313211 is 11231331032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23013313211 is a prime.

It is a super-2 number, since 2×23013313211² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23013313201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643808080 + ... + 1643808093.

It is an arithmetic number, because the mean of its divisors is an integer number (6575232348).

Almost surely, 2^23013313211 is an apocalyptic number.

23013313211 is a deficient number, since it is larger than the sum of its proper divisors (3287616181).

23013313211 is an equidigital number, since it uses as much as digits as its factorization.

23013313211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287616180.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23013313211 its reverse (11231331032), we get a palindrome (34244644243).

The spelling of 23013313211 in words is "twenty-three billion, thirteen million, three hundred thirteen thousand, two hundred eleven".