1312312012 has 96 divisors (see below), whose sum is σ = 2730309120. Its totient is φ = 545825280.

The previous prime is 1312311983. The next prime is 1312312033. The reversal of 1312312012 is 2102132131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2306064 + ... + 2306632.

It is an arithmetic number, because the mean of its divisors is an integer number (28440720).

Almost surely, 2^1312312012 is an apocalyptic number.

It is an amenable number.

1312312012 is an abundant number, since it is smaller than the sum of its proper divisors (1417997108).

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

1312312012 is a wasteful number, since it uses less digits than its factorization.

1312312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 701 counting only the distinct ones).

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

The square root of 1312312012 is about 36225.8472916784. The cubic root of 1312312012 is about 1094.8275096479.

Adding to 1312312012 its reverse (2102132131), we get a palindrome (3414444143).

The spelling of 1312312012 in words is "one billion, three hundred twelve million, three hundred twelve thousand, twelve".