1310235400531 has 2 divisors, whose sum is σ = 1310235400532. Its totient is φ = 1310235400530.

The previous prime is 1310235400501. The next prime is 1310235400547. The reversal of 1310235400531 is 1350045320131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1310235400531 - 2²⁵ = 1310201846099 is a prime.

It is a super-2 number, since 2×1310235400531² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1310235400531.

It is not a weakly prime, because it can be changed into another prime (1310235400501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655117700265 + 655117700266.

It is an arithmetic number, because the mean of its divisors is an integer number (655117700266).

Almost surely, 2^{1310235400531} is an apocalyptic number.

1310235400531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310235400531 is an equidigital number, since it uses as much as digits as its factorization.

1310235400531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 1310235400531 in words is "one trillion, three hundred ten billion, two hundred thirty-five million, four hundred thousand, five hundred thirty-one".