1312100321202 has 48 divisors (see below), whose sum is σ = 3159843680448. Its totient is φ = 390104151840.

The previous prime is 1312100321153. The next prime is 1312100321239. The reversal of 1312100321202 is 2021230012131.

1312100321202 is a `hidden beast` number, since 1 + 312 + 10 + 0 + 321 + 20 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62506198 + ... + 62527185.

It is an arithmetic number, because the mean of its divisors is an integer number (65830076676).

Almost surely, 2^{1312100321202} is an apocalyptic number.

1312100321202 is an abundant number, since it is smaller than the sum of its proper divisors (1847743359246).

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

1312100321202 is a wasteful number, since it uses less digits than its factorization.

1312100321202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125033455 (or 125033452 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1312100321202 its reverse (2021230012131), we get a palindrome (3333330333333).

The spelling of 1312100321202 in words is "one trillion, three hundred twelve billion, one hundred million, three hundred twenty-one thousand, two hundred two".