2131031122 has 16 divisors (see below), whose sum is σ = 3495029472. Its totient is φ = 966459520.

The previous prime is 2131031069. The next prime is 2131031137. The reversal of 2131031122 is 2211301312.

It is a junction number, because it is equal to n+sod(n) for n = 2131031096 and 2131031105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99583 + ... + 119074.

It is an arithmetic number, because the mean of its divisors is an integer number (218439342).

Almost surely, 2^2131031122 is an apocalyptic number.

2131031122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131031122 is a deficient number, since it is larger than the sum of its proper divisors (1363998350).

2131031122 is a wasteful number, since it uses less digits than its factorization.

2131031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219113.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2131031122 is about 46163.0926390336. The cubic root of 2131031122 is about 1286.8559376709.

Adding to 2131031122 its reverse (2211301312), we get a palindrome (4342332434).

The spelling of 2131031122 in words is "two billion, one hundred thirty-one million, thirty-one thousand, one hundred twenty-two".