313021120387 has 2 divisors, whose sum is σ = 313021120388. Its totient is φ = 313021120386.

The previous prime is 313021120297. The next prime is 313021120403. The reversal of 313021120387 is 783021120313.

It is a strong prime.

It is an emirp because it is prime and its reverse (783021120313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313021120387 - 2⁷ = 313021120259 is a prime.

It is not a weakly prime, because it can be changed into another prime (313021120787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156510560193 + 156510560194.

It is an arithmetic number, because the mean of its divisors is an integer number (156510560194).

Almost surely, 2^313021120387 is an apocalyptic number.

313021120387 is a deficient number, since it is larger than the sum of its proper divisors (1).

313021120387 is an equidigital number, since it uses as much as digits as its factorization.

313021120387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 313021120387 in words is "three hundred thirteen billion, twenty-one million, one hundred twenty thousand, three hundred eighty-seven".