3112201312 has 72 divisors (see below), whose sum is σ = 6776533008. Its totient is φ = 1405873920.

The previous prime is 3112201289. The next prime is 3112201331. The reversal of 3112201312 is 2131022113.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 644218 + ... + 649030.

It is an arithmetic number, because the mean of its divisors is an integer number (94118514).

Almost surely, 2^3112201312 is an apocalyptic number.

3112201312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3112201312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3388266504).

3112201312 is an abundant number, since it is smaller than the sum of its proper divisors (3664331696).

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

3112201312 is a wasteful number, since it uses less digits than its factorization.

3112201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012 (or 4993 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3112201312 is about 55787.1070409642. The cubic root of 3112201312 is about 1460.0102132269.

Adding to 3112201312 its reverse (2131022113), we get a palindrome (5243223425).

The spelling of 3112201312 in words is "three billion, one hundred twelve million, two hundred one thousand, three hundred twelve".