1312031202 has 16 divisors (see below), whose sum is σ = 2778419232. Its totient is φ = 411617600.

The previous prime is 1312031191. The next prime is 1312031213. The reversal of 1312031202 is 2021302131.

It is an interprime number because it is at equal distance from previous prime (1312031191) and next prime (1312031213).

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, 6431424 + ... + 6431627.

It is an arithmetic number, because the mean of its divisors is an integer number (173651202).

Almost surely, 2^1312031202 is an apocalyptic number.

1312031202 is an abundant number, since it is smaller than the sum of its proper divisors (1466388030).

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

1312031202 is a wasteful number, since it uses less digits than its factorization.

1312031202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863073.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1312031202 is about 36221.9712605485. The cubic root of 1312031202 is about 1094.7494132701.

Adding to 1312031202 its reverse (2021302131), we get a palindrome (3333333333).

The spelling of 1312031202 in words is "one billion, three hundred twelve million, thirty-one thousand, two hundred two".