20312321324 has 6 divisors (see below), whose sum is σ = 35546562324. Its totient is φ = 10156160660.

The previous prime is 20312321287. The next prime is 20312321371. The reversal of 20312321324 is 42312321302.

It is a super-2 number, since 2×20312321324² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20312321324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539040162 + ... + 2539040169.

It is an arithmetic number, because the mean of its divisors is an integer number (5924427054).

Almost surely, 2^20312321324 is an apocalyptic number.

It is an amenable number.

20312321324 is a deficient number, since it is larger than the sum of its proper divisors (15234241000).

20312321324 is a wasteful number, since it uses less digits than its factorization.

20312321324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078080335 (or 5078080333 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20312321324 its reverse (42312321302), we get a palindrome (62624642626).

The spelling of 20312321324 in words is "twenty billion, three hundred twelve million, three hundred twenty-one thousand, three hundred twenty-four".