23212312311 has 8 divisors (see below), whose sum is σ = 31146882544. Its totient is φ = 15376308480.

The previous prime is 23212312307. The next prime is 23212312391. The reversal of 23212312311 is 11321321232.

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

It is not a de Polignac number, because 23212312311 - 2² = 23212312307 is a prime.

It is a super-2 number, since 2×23212312311² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212312301) 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, 24641050 + ... + 24641991.

It is an arithmetic number, because the mean of its divisors is an integer number (3893360318).

Almost surely, 2^23212312311 is an apocalyptic number.

23212312311 is a deficient number, since it is larger than the sum of its proper divisors (7934570233).

23212312311 is a wasteful number, since it uses less digits than its factorization.

23212312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49283201.

The product of its digits is 432, while the sum is 21.

Adding to 23212312311 its reverse (11321321232), we get a palindrome (34533633543).

The spelling of 23212312311 in words is "twenty-three billion, two hundred twelve million, three hundred twelve thousand, three hundred eleven".