1312323420202 has 16 divisors (see below), whose sum is σ = 2140610223240. Its totient is φ = 600873043968.

The previous prime is 1312323420113. The next prime is 1312323420203. The reversal of 1312323420202 is 2020243232131.

It can be written as a sum of positive squares in 4 ways, for example, as 1240659594801 + 71663825401 = 1113849^2 + 267701^2 .

It is not an unprimeable number, because it can be changed into a prime (1312323420203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521589927 + ... + 521592442.

Almost surely, 2^{1312323420202} is an apocalyptic number.

1312323420202 is a deficient number, since it is larger than the sum of its proper divisors (828286803038).

1312323420202 is a wasteful number, since it uses less digits than its factorization.

1312323420202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043182425.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1312323420202 its reverse (2020243232131), we get a palindrome (3332566652333).

The spelling of 1312323420202 in words is "one trillion, three hundred twelve billion, three hundred twenty-three million, four hundred twenty thousand, two hundred two".