1312220320202 has 16 divisors (see below), whose sum is σ = 2147412615552. Its totient is φ = 596424059520.

The previous prime is 1312220320181. The next prime is 1312220320237. The reversal of 1312220320202 is 2020230222131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646978 + ... + 2310189.

It is an arithmetic number, because the mean of its divisors is an integer number (134213288472).

Almost surely, 2^{1312220320202} is an apocalyptic number.

1312220320202 is a deficient number, since it is larger than the sum of its proper divisors (835192295350).

1312220320202 is a wasteful number, since it uses less digits than its factorization.

1312220320202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972253.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1312220320202 its reverse (2020230222131), we get a palindrome (3332450542333).

The spelling of 1312220320202 in words is "one trillion, three hundred twelve billion, two hundred twenty million, three hundred twenty thousand, two hundred two".