1312100222013 has 48 divisors (see below), whose sum is σ = 2247805239680. Its totient is φ = 749245484736.

The previous prime is 1312100222011. The next prime is 1312100222029. The reversal of 1312100222013 is 3102220012131.

It is not a de Polignac number, because 1312100222013 - 2¹ = 1312100222011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312100222011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2160831 + ... + 2700627.

Almost surely, 2^{1312100222013} is an apocalyptic number.

It is an amenable number.

1312100222013 is a deficient number, since it is larger than the sum of its proper divisors (935705017667).

1312100222013 is an equidigital number, since it uses as much as digits as its factorization.

1312100222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541248 (or 541236 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1312100222013 its reverse (3102220012131), we get a palindrome (4414320234144).

The spelling of 1312100222013 in words is "one trillion, three hundred twelve billion, one hundred million, two hundred twenty-two thousand, thirteen".