21323364251432 has 64 divisors (see below), whose sum is σ = 40362846123600. Its totient is φ = 10560300687360.

The previous prime is 21323364251411. The next prime is 21323364251471. The reversal of 21323364251432 is 23415246332312.

It can be written as a sum of positive squares in 8 ways, for example, as 15988530056356 + 5334834195076 = 3998566^2 + 2309726^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21323364251432.

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 15 ways as a sum of consecutive naturals, for example, 2130414044 + ... + 2130424052.

Almost surely, 2^{21323364251432} is an apocalyptic number.

It is an amenable number.

21323364251432 is a deficient number, since it is larger than the sum of its proper divisors (19039481872168).

21323364251432 is a wasteful number, since it uses less digits than its factorization.

21323364251432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14286 (or 14282 counting only the distinct ones).

The product of its digits is 622080, while the sum is 41.

The spelling of 21323364251432 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred sixty-four million, two hundred fifty-one thousand, four hundred thirty-two".