21323244232312 has 32 divisors (see below), whose sum is σ = 44543721035520. Its totient is φ = 9486162809440.

The previous prime is 21323244232219. The next prime is 21323244232321.

It is a happy number.

21323244232312 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577757498 + ... + 2577765769.

It is an arithmetic number, because the mean of its divisors is an integer number (1391991282360).

Almost surely, 2^{21323244232312} is an apocalyptic number.

21323244232312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21323244232312 is an abundant number, since it is smaller than the sum of its proper divisors (23220476803208).

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

21323244232312 is a wasteful number, since it uses less digits than its factorization.

21323244232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155523331 (or 5155523327 counting only the distinct ones).

The product of its digits is 82944, while the sum is 34.

It can be divided in two parts, 2132324 and 4232312, that added together give a palindrome (6364636).

The spelling of 21323244232312 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred forty-four million, two hundred thirty-two thousand, three hundred twelve".