20131100330 has 24 divisors (see below), whose sum is σ = 39829633956. Its totient is φ = 7320399680.

The previous prime is 20131100309. The next prime is 20131100347. The reversal of 20131100330 is 3300113102.

It can be written as a sum of positive squares in 2 ways, for example, as 18885080929 + 1246019401 = 137423^2 + 35299^2 .

It is a super-2 number, since 2×20131100330² (a number of 21 digits) contains 22 as substring.

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 in 11 ways as a sum of consecutive naturals, for example, 8317427 + ... + 8319846.

Almost surely, 2^20131100330 is an apocalyptic number.

20131100330 is a deficient number, since it is larger than the sum of its proper divisors (19698533626).

20131100330 is a wasteful number, since it uses less digits than its factorization.

20131100330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16637302 (or 16637291 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20131100330 its reverse (3300113102), we get a palindrome (23431213432).

The spelling of 20131100330 in words is "twenty billion, one hundred thirty-one million, one hundred thousand, three hundred thirty".