20311232324 has 24 divisors (see below), whose sum is σ = 37640903328. Its totient is φ = 9556859520.

The previous prime is 20311232323. The next prime is 20311232413. The reversal of 20311232324 is 42323211302.

It is a self number, because there is not a number n which added to its sum of digits gives 20311232324.

It is not an unprimeable number, because it can be changed into a prime (20311232321) 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 7 ways as a sum of consecutive naturals, for example, 581639 + ... + 615569.

It is an arithmetic number, because the mean of its divisors is an integer number (1568370972).

Almost surely, 2^20311232324 is an apocalyptic number.

It is an amenable number.

20311232324 is a deficient number, since it is larger than the sum of its proper divisors (17329671004).

20311232324 is a wasteful number, since it uses less digits than its factorization.

20311232324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42755 (or 42753 counting only the distinct ones).

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

Adding to 20311232324 its reverse (42323211302), we get a palindrome (62634443626).

The spelling of 20311232324 in words is "twenty billion, three hundred eleven million, two hundred thirty-two thousand, three hundred twenty-four".