20031122130 has 32 divisors (see below), whose sum is σ = 49625491968. Its totient is φ = 5169321600.

The previous prime is 20031122129. The next prime is 20031122141. The reversal of 20031122130 is 3122113002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10768491 + ... + 10770350.

It is an arithmetic number, because the mean of its divisors is an integer number (1550796624).

Almost surely, 2^20031122130 is an apocalyptic number.

20031122130 is an abundant number, since it is smaller than the sum of its proper divisors (29594369838).

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

20031122130 is a wasteful number, since it uses less digits than its factorization.

20031122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21538882.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20031122130 its reverse (3122113002), we get a palindrome (23153235132).

The spelling of 20031122130 in words is "twenty billion, thirty-one million, one hundred twenty-two thousand, one hundred thirty".