23311010311 has 4 divisors (see below), whose sum is σ = 23322214224. Its totient is φ = 23299806400.

The previous prime is 23311010257. The next prime is 23311010329. The reversal of 23311010311 is 11301011332.

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-23311010311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311010381) 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, 5598835 + ... + 5602996.

It is an arithmetic number, because the mean of its divisors is an integer number (5830553556).

Almost surely, 2^23311010311 is an apocalyptic number.

23311010311 is a deficient number, since it is larger than the sum of its proper divisors (11203913).

23311010311 is a wasteful number, since it uses less digits than its factorization.

23311010311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11203912.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 23311010311 its reverse (11301011332), we get a palindrome (34612021643).

The spelling of 23311010311 in words is "twenty-three billion, three hundred eleven million, ten thousand, three hundred eleven".