20131202330 has 16 divisors (see below), whose sum is σ = 36391688424. Its totient is φ = 8017920000.

The previous prime is 20131202327. The next prime is 20131202363. The reversal of 20131202330 is 3320213102.

It can be written as a sum of positive squares in 4 ways, for example, as 7791769441 + 12339432889 = 88271^2 + 111083^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20131202299 and 20131202308.

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 7 ways as a sum of consecutive naturals, for example, 4317671 + ... + 4322330.

Almost surely, 2^20131202330 is an apocalyptic number.

20131202330 is a deficient number, since it is larger than the sum of its proper divisors (16260486094).

20131202330 is a wasteful number, since it uses less digits than its factorization.

20131202330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640241.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20131202330 its reverse (3320213102), we get a palindrome (23451415432).

The spelling of 20131202330 in words is "twenty billion, one hundred thirty-one million, two hundred two thousand, three hundred thirty".