3031121312 has 12 divisors (see below), whose sum is σ = 5967520146. Its totient is φ = 1515560640.

The previous prime is 3031121311. The next prime is 3031121333. The reversal of 3031121312 is 2131211303.

3031121312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2428124176 + 602997136 = 49276^2 + 24556^2 .

It is not an unprimeable number, because it can be changed into a prime (3031121311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47361239 + ... + 47361302.

Almost surely, 2^3031121312 is an apocalyptic number.

3031121312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3031121312 is a deficient number, since it is larger than the sum of its proper divisors (2936398834).

3031121312 is an equidigital number, since it uses as much as digits as its factorization.

3031121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94722551 (or 94722543 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3031121312 is about 55055.6201672454. The cubic root of 3031121312 is about 1447.2196124582.

Adding to 3031121312 its reverse (2131211303), we get a palindrome (5162332615).

The spelling of 3031121312 in words is "three billion, thirty-one million, one hundred twenty-one thousand, three hundred twelve".