1312212983 has 32 divisors (see below), whose sum is σ = 1460270592. Its totient is φ = 1174118400.

The previous prime is 1312212977. The next prime is 1312213013. The reversal of 1312212983 is 3892122131.

It is a cyclic number.

It is not a de Polignac number, because 1312212983 - 2¹⁰ = 1312211959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312212943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6798935 + ... + 6799127.

It is an arithmetic number, because the mean of its divisors is an integer number (45633456).

Almost surely, 2^1312212983 is an apocalyptic number.

1312212983 is a deficient number, since it is larger than the sum of its proper divisors (148057609).

1312212983 is a wasteful number, since it uses less digits than its factorization.

1312212983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its digits is 5184, while the sum is 32.

The square root of 1312212983 is about 36224.4804379580. The cubic root of 1312212983 is about 1094.7999698556.

The spelling of 1312212983 in words is "one billion, three hundred twelve million, two hundred twelve thousand, nine hundred eighty-three".