2031130112220 has 72 divisors (see below), whose sum is σ = 6721194196080. Its totient is φ = 492395178240.

The previous prime is 2031130112173. The next prime is 2031130112239. The reversal of 2031130112220 is 222110311302.

2031130112220 is a `hidden beast` number, since 20 + 311 + 3 + 0 + 112 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2031130112193 and 2031130112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 512909665 + ... + 512913624.

It is an arithmetic number, because the mean of its divisors is an integer number (93349919390).

Almost surely, 2^{2031130112220} is an apocalyptic number.

2031130112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031130112220 is an abundant number, since it is smaller than the sum of its proper divisors (4690064083860).

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

2031130112220 is a wasteful number, since it uses less digits than its factorization.

2031130112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025823315 (or 1025823310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2031130112220 its reverse (222110311302), we get a palindrome (2253240423522).

The spelling of 2031130112220 in words is "two trillion, thirty-one billion, one hundred thirty million, one hundred twelve thousand, two hundred twenty".