21323111132312 has 16 divisors (see below), whose sum is σ = 43615454589000. Its totient is φ = 9692323241920.

The previous prime is 21323111132269. The next prime is 21323111132327.

21323111132312 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 121154040437 + ... + 121154040612.

Almost surely, 2^{21323111132312} is an apocalyptic number.

21323111132312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21323111132312 is an abundant number, since it is smaller than the sum of its proper divisors (22292343456688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21323111132312 is a wasteful number, since it uses less digits than its factorization.

21323111132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242308081066 (or 242308081062 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

It can be divided in two parts, 2132311 and 1132312, that added together give a palindrome (3264623).

The spelling of 21323111132312 in words is "twenty-one trillion, three hundred twenty-three billion, one hundred eleven million, one hundred thirty-two thousand, three hundred twelve".