1312212953 has 2 divisors, whose sum is σ = 1312212954. Its totient is φ = 1312212952.

The previous prime is 1312212943. The next prime is 1312212973. The reversal of 1312212953 is 3592122131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1228362304 + 83850649 = 35048^2 + 9157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312212953 - 2¹⁴ = 1312196569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1312212943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656106476 + 656106477.

It is an arithmetic number, because the mean of its divisors is an integer number (656106477).

Almost surely, 2^1312212953 is an apocalyptic number.

It is an amenable number.

1312212953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312212953 is an equidigital number, since it uses as much as digits as its factorization.

1312212953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 1312212953 is about 36224.4800238734. The cubic root of 1312212953 is about 1094.7999615125.

The spelling of 1312212953 in words is "one billion, three hundred twelve million, two hundred twelve thousand, nine hundred fifty-three".