311425903 has 4 divisors (see below), whose sum is σ = 327816760. Its totient is φ = 295035048.

The previous prime is 311425889. The next prime is 311425921. The reversal of 311425903 is 309524113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311425903 - 2⁹ = 311425391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311425973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8195400 + ... + 8195437.

It is an arithmetic number, because the mean of its divisors is an integer number (81954190).

Almost surely, 2^311425903 is an apocalyptic number.

311425903 is a deficient number, since it is larger than the sum of its proper divisors (16390857).

311425903 is a wasteful number, since it uses less digits than its factorization.

311425903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390856.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 311425903 is about 17647.2633289131. The cubic root of 311425903 is about 677.8260322647.

The spelling of 311425903 in words is "three hundred eleven million, four hundred twenty-five thousand, nine hundred three".