1312111201002 has 32 divisors (see below), whose sum is σ = 3001938102144. Its totient is φ = 374535566400.

The previous prime is 1312111200971. The next prime is 1312111201003. The reversal of 1312111201002 is 2001021112131.

It is not an unprimeable number, because it can be changed into a prime (1312111201003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14677749 + ... + 14766872.

It is an arithmetic number, because the mean of its divisors is an integer number (93810565692).

Almost surely, 2^{1312111201002} is an apocalyptic number.

1312111201002 is an abundant number, since it is smaller than the sum of its proper divisors (1689826901142).

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

1312111201002 is a wasteful number, since it uses less digits than its factorization.

1312111201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29445694.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1312111201002 its reverse (2001021112131), we get a palindrome (3313132313133).

The spelling of 1312111201002 in words is "one trillion, three hundred twelve billion, one hundred eleven million, two hundred one thousand, two".