3131230122 has 20 divisors (see below), whose sum is σ = 7016275266. Its totient is φ = 1043743320.

The previous prime is 3131230121. The next prime is 3131230139. The reversal of 3131230122 is 2210321313.

3131230122 is a `hidden beast` number, since 31 + 312 + 301 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2431574721 + 699655401 = 49311^2 + 26451^2 .

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 = 3131230095 and 3131230104.

It is not an unprimeable number, because it can be changed into a prime (3131230121) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 9664129 + ... + 9664452.

Almost surely, 2^3131230122 is an apocalyptic number.

3131230122 is an abundant number, since it is smaller than the sum of its proper divisors (3885045144).

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

3131230122 is a wasteful number, since it uses less digits than its factorization.

3131230122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19328595 (or 19328586 counting only the distinct ones).

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

The square root of 3131230122 is about 55957.3955970076. The cubic root of 3131230122 is about 1462.9797968183.

Adding to 3131230122 its reverse (2210321313), we get a palindrome (5341551435).

The spelling of 3131230122 in words is "three billion, one hundred thirty-one million, two hundred thirty thousand, one hundred twenty-two".