1311322311202 has 16 divisors (see below), whose sum is σ = 2027334343032. Its totient is φ = 635670322560.

The previous prime is 1311322311191. The next prime is 1311322311223. The reversal of 1311322311202 is 2021132231131.

It can be written as a sum of positive squares in 4 ways, for example, as 1207754842441 + 103567468761 = 1098979^2 + 321819^2 .

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, 31510473 + ... + 31552060.

Almost surely, 2^{1311322311202} is an apocalyptic number.

1311322311202 is a deficient number, since it is larger than the sum of its proper divisors (716012031830).

1311322311202 is a wasteful number, since it uses less digits than its factorization.

1311322311202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63062853.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1311322311202 its reverse (2021132231131), we get a palindrome (3332454542333).

The spelling of 1311322311202 in words is "one trillion, three hundred eleven billion, three hundred twenty-two million, three hundred eleven thousand, two hundred two".