1312379203 has 16 divisors (see below), whose sum is σ = 1374177280. Its totient is φ = 1251936000.

The previous prime is 1312379197. The next prime is 1312379213. The reversal of 1312379203 is 3029732131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312379203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312379213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649651 + ... + 651667.

It is an arithmetic number, because the mean of its divisors is an integer number (85886080).

Almost surely, 2^1312379203 is an apocalyptic number.

1312379203 is a deficient number, since it is larger than the sum of its proper divisors (61798077).

1312379203 is a wasteful number, since it uses less digits than its factorization.

1312379203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 1312379203 is about 36226.7746701249. The cubic root of 1312379203 is about 1094.8461945590.

The spelling of 1312379203 in words is "one billion, three hundred twelve million, three hundred seventy-nine thousand, two hundred three".