3123313012 has 6 divisors (see below), whose sum is σ = 5465797778. Its totient is φ = 1561656504.

The previous prime is 3123313009. The next prime is 3123313027. The reversal of 3123313012 is 2103133213.

It can be written as a sum of positive squares in only one way, i.e., 2899391716 + 223921296 = 53846^2 + 14964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390414123 + ... + 390414130.

Almost surely, 2^3123313012 is an apocalyptic number.

It is an amenable number.

3123313012 is a deficient number, since it is larger than the sum of its proper divisors (2342484766).

3123313012 is a wasteful number, since it uses less digits than its factorization.

3123313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780828257 (or 780828255 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3123313012 is about 55886.6085211833. The cubic root of 3123313012 is about 1461.7457400006.

Adding to 3123313012 its reverse (2103133213), we get a palindrome (5226446225).

The spelling of 3123313012 in words is "three billion, one hundred twenty-three million, three hundred thirteen thousand, twelve".