21310313032 has 16 divisors (see below), whose sum is σ = 40061168640. Its totient is φ = 10627334736.

The previous prime is 21310313023. The next prime is 21310313039. The reversal of 21310313032 is 23031301312.

It is not an unprimeable number, because it can be changed into a prime (21310313039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3474468 + ... + 3480595.

It is an arithmetic number, because the mean of its divisors is an integer number (2503823040).

Almost surely, 2^21310313032 is an apocalyptic number.

It is an amenable number.

21310313032 is a deficient number, since it is larger than the sum of its proper divisors (18750855608).

21310313032 is a wasteful number, since it uses less digits than its factorization.

21310313032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955452 (or 6955448 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21310313032 its reverse (23031301312), we get a palindrome (44341614344).

The spelling of 21310313032 in words is "twenty-one billion, three hundred ten million, three hundred thirteen thousand, thirty-two".