3131322122 has 4 divisors (see below), whose sum is σ = 4696983186. Its totient is φ = 1565661060.

The previous prime is 3131322119. The next prime is 3131322127. The reversal of 3131322122 is 2212231313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1801917601 + 1329404521 = 42449^2 + 36461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3131322094 and 3131322103.

It is not an unprimeable number, because it can be changed into a prime (3131322127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 782830529 + ... + 782830532.

Almost surely, 2^3131322122 is an apocalyptic number.

3131322122 is a deficient number, since it is larger than the sum of its proper divisors (1565661064).

3131322122 is a wasteful number, since it uses less digits than its factorization.

3131322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565661063.

The product of its digits is 432, while the sum is 20.

The square root of 3131322122 is about 55958.2176449536. The cubic root of 3131322122 is about 1462.9941248212.

Adding to 3131322122 its reverse (2212231313), we get a palindrome (5343553435).

It can be divided in two parts, 31313 and 22122, that added together give a palindrome (53435).

The spelling of 3131322122 in words is "three billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred twenty-two".