1312023000961 has 2 divisors, whose sum is σ = 1312023000962. Its totient is φ = 1312023000960.

The previous prime is 1312023000947. The next prime is 1312023000991. The reversal of 1312023000961 is 1690003202131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139515685361 + 172507315600 = 1067481^2 + 415340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312023000961 - 2⁷ = 1312023000833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312023000931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656011500480 + 656011500481.

It is an arithmetic number, because the mean of its divisors is an integer number (656011500481).

Almost surely, 2^{1312023000961} is an apocalyptic number.

It is an amenable number.

1312023000961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312023000961 is an equidigital number, since it uses as much as digits as its factorization.

1312023000961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 1312023000961 in words is "one trillion, three hundred twelve billion, twenty-three million, nine hundred sixty-one", and thus it is an aban number.