1312121022102 has 24 divisors (see below), whose sum is σ = 3101376961800. Its totient is φ = 397612430880.

The previous prime is 1312121022089. The next prime is 1312121022127. The reversal of 1312121022102 is 2012201212131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3313436727 + ... + 3313437122.

It is an arithmetic number, because the mean of its divisors is an integer number (129224040075).

Almost surely, 2^{1312121022102} is an apocalyptic number.

1312121022102 is an abundant number, since it is smaller than the sum of its proper divisors (1789255939698).

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

1312121022102 is a wasteful number, since it uses less digits than its factorization.

1312121022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626873868 (or 6626873865 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1312121022102 its reverse (2012201212131), we get a palindrome (3324322234233).

The spelling of 1312121022102 in words is "one trillion, three hundred twelve billion, one hundred twenty-one million, twenty-two thousand, one hundred two".