21312332319 has 64 divisors (see below), whose sum is σ = 32892480000. Its totient is φ = 12183736320.

The previous prime is 21312332309. The next prime is 21312332333. The reversal of 21312332319 is 91323321312.

It is not a de Polignac number, because 21312332319 - 2¹³ = 21312324127 is a prime.

It is a super-2 number, since 2×21312332319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21312332309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7895032 + ... + 7897730.

It is an arithmetic number, because the mean of its divisors is an integer number (513945000).

Almost surely, 2^21312332319 is an apocalyptic number.

21312332319 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

21312332319 is a deficient number, since it is larger than the sum of its proper divisors (11580147681).

21312332319 is a wasteful number, since it uses less digits than its factorization.

21312332319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048.

The product of its digits is 5832, while the sum is 30.

The spelling of 21312332319 in words is "twenty-one billion, three hundred twelve million, three hundred thirty-two thousand, three hundred nineteen".