20312231130 has 48 divisors (see below), whose sum is σ = 52820951040. Its totient is φ = 5415656544.

The previous prime is 20312231123. The next prime is 20312231141. The reversal of 20312231130 is 3113221302.

20312231130 is a `hidden beast` number, since 203 + 122 + 311 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 617479 + ... + 649541.

It is an arithmetic number, because the mean of its divisors is an integer number (1100436480).

Almost surely, 2^20312231130 is an apocalyptic number.

20312231130 is an abundant number, since it is smaller than the sum of its proper divisors (32508719910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312231130 is a wasteful number, since it uses less digits than its factorization.

20312231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39115 (or 39112 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20312231130 its reverse (3113221302), we get a palindrome (23425452432).

The spelling of 20312231130 in words is "twenty billion, three hundred twelve million, two hundred thirty-one thousand, one hundred thirty".