23212303311 has 16 divisors (see below), whose sum is σ = 31538924640. Its totient is φ = 15180372480.

The previous prime is 23212303277. The next prime is 23212303321. The reversal of 23212303311 is 11330321232.

It is not a de Polignac number, because 23212303311 - 2¹⁷ = 23212172239 is a prime.

It is a super-2 number, since 2×23212303311² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212303321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1801251 + ... + 1814091.

It is an arithmetic number, because the mean of its divisors is an integer number (1971182790).

Almost surely, 2^23212303311 is an apocalyptic number.

23212303311 is a deficient number, since it is larger than the sum of its proper divisors (8326621329).

23212303311 is a wasteful number, since it uses less digits than its factorization.

23212303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24266.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23212303311 its reverse (11330321232), we get a palindrome (34542624543).

The spelling of 23212303311 in words is "twenty-three billion, two hundred twelve million, three hundred three thousand, three hundred eleven".