1310131020122 has 4 divisors (see below), whose sum is σ = 1965196530186. Its totient is φ = 655065510060.

The previous prime is 1310131020113. The next prime is 1310131020179. The reversal of 1310131020122 is 2210201310131.

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., 1236808670161 + 73322349961 = 1112119^2 + 270781^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1310131020122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327532755029 + ... + 327532755032.

Almost surely, 2^{1310131020122} is an apocalyptic number.

1310131020122 is a deficient number, since it is larger than the sum of its proper divisors (655065510064).

1310131020122 is an equidigital number, since it uses as much as digits as its factorization.

1310131020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655065510063.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1310131020122 its reverse (2210201310131), we get a palindrome (3520332330253).

The spelling of 1310131020122 in words is "one trillion, three hundred ten billion, one hundred thirty-one million, twenty thousand, one hundred twenty-two".