1313207023123 has 2 divisors, whose sum is σ = 1313207023124. Its totient is φ = 1313207023122.

The previous prime is 1313207023091. The next prime is 1313207023181. The reversal of 1313207023123 is 3213207023131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313207023123 - 2⁵ = 1313207023091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313207023091 and 1313207023100.

It is not a weakly prime, because it can be changed into another prime (1313207023823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656603511561 + 656603511562.

It is an arithmetic number, because the mean of its divisors is an integer number (656603511562).

Almost surely, 2^{1313207023123} is an apocalyptic number.

1313207023123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313207023123 is an equidigital number, since it uses as much as digits as its factorization.

1313207023123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The spelling of 1313207023123 in words is "one trillion, three hundred thirteen billion, two hundred seven million, twenty-three thousand, one hundred twenty-three".