1312420555412 has 12 divisors (see below), whose sum is σ = 2300221160160. Its totient is φ = 655214509656.

The previous prime is 1312420555379. The next prime is 1312420555469. The reversal of 1312420555412 is 2145550242131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248939048 + ... + 248944319.

It is an arithmetic number, because the mean of its divisors is an integer number (191685096680).

Almost surely, 2^{1312420555412} is an apocalyptic number.

It is an amenable number.

1312420555412 is a deficient number, since it is larger than the sum of its proper divisors (987800604748).

1312420555412 is a wasteful number, since it uses less digits than its factorization.

1312420555412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497884030 (or 497884028 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 1312420555412 its reverse (2145550242131), we get a palindrome (3457970797543).

The spelling of 1312420555412 in words is "one trillion, three hundred twelve billion, four hundred twenty million, five hundred fifty-five thousand, four hundred twelve".