1312131111302 has 32 divisors (see below), whose sum is σ = 2222736768000. Its totient is φ = 575529847200.

The previous prime is 1312131111283. The next prime is 1312131111373. The reversal of 1312131111302 is 2031111312131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2518352 + ... + 2994387.

It is an arithmetic number, because the mean of its divisors is an integer number (69460524000).

Almost surely, 2^{1312131111302} is an apocalyptic number.

1312131111302 is a deficient number, since it is larger than the sum of its proper divisors (910605656698).

1312131111302 is a wasteful number, since it uses less digits than its factorization.

1312131111302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513132.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1312131111302 its reverse (2031111312131), we get a palindrome (3343242423433).

The spelling of 1312131111302 in words is "one trillion, three hundred twelve billion, one hundred thirty-one million, one hundred eleven thousand, three hundred two".