1312012311202 has 16 divisors (see below), whose sum is σ = 2013911523360. Its totient is φ = 640710366912.

The previous prime is 1312012311173. The next prime is 1312012311229. The reversal of 1312012311202 is 2021132102131.

It is a super-2 number, since 2×1312012311202² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312012311202.

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, 941733 + ... + 1873735.

It is an arithmetic number, because the mean of its divisors is an integer number (125869470210).

Almost surely, 2^{1312012311202} is an apocalyptic number.

1312012311202 is a deficient number, since it is larger than the sum of its proper divisors (701899212158).

1312012311202 is a wasteful number, since it uses less digits than its factorization.

1312012311202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948417.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312012311202 its reverse (2021132102131), we get a palindrome (3333144413333).

The spelling of 1312012311202 in words is "one trillion, three hundred twelve billion, twelve million, three hundred eleven thousand, two hundred two".