313123087 has 2 divisors, whose sum is σ = 313123088. Its totient is φ = 313123086.

The previous prime is 313123079. The next prime is 313123091. The reversal of 313123087 is 780321313.

It is a strong prime.

It is an emirp because it is prime and its reverse (780321313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313123087 - 2³ = 313123079 is a prime.

It is a super-2 number, since 2×313123087² = 196092135224819138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313123067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156561543 + 156561544.

It is an arithmetic number, because the mean of its divisors is an integer number (156561544).

Almost surely, 2^313123087 is an apocalyptic number.

313123087 is a deficient number, since it is larger than the sum of its proper divisors (1).

313123087 is an equidigital number, since it uses as much as digits as its factorization.

313123087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 313123087 is about 17695.2843153197. The cubic root of 313123087 is about 679.0551229430.

The spelling of 313123087 in words is "three hundred thirteen million, one hundred twenty-three thousand, eighty-seven".