21323011032312 has 96 divisors (see below), whose sum is σ = 59174366181840. Its totient is φ = 6397542976000.

The previous prime is 21323011032311. The next prime is 21323011032341.

21323011032312 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323011032311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36056373 + ... + 36642980.

Almost surely, 2^{21323011032312} is an apocalyptic number.

21323011032312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21323011032312 is an abundant number, since it is smaller than the sum of its proper divisors (37851355149528).

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

21323011032312 is a wasteful number, since it uses less digits than its factorization.

21323011032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72699485 (or 72699470 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

It can be divided in two parts, 2132301 and 1032312, that added together give a palindrome (3164613).

The spelling of 21323011032312 in words is "twenty-one trillion, three hundred twenty-three billion, eleven million, thirty-two thousand, three hundred twelve".