1312270012 has 6 divisors (see below), whose sum is σ = 2296472528. Its totient is φ = 656135004.

The previous prime is 1312269997. The next prime is 1312270019. The reversal of 1312270012 is 2100722131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312270019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164033748 + ... + 164033755.

Almost surely, 2^1312270012 is an apocalyptic number.

It is an amenable number.

1312270012 is a deficient number, since it is larger than the sum of its proper divisors (984202516).

1312270012 is a wasteful number, since it uses less digits than its factorization.

1312270012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328067507 (or 328067505 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1312270012 is about 36225.2675904540. The cubic root of 1312270012 is about 1094.8158296903.

Adding to 1312270012 its reverse (2100722131), we get a palindrome (3412992143).

The spelling of 1312270012 in words is "one billion, three hundred twelve million, two hundred seventy thousand, twelve".