311924630809 has 4 divisors (see below), whose sum is σ = 340281415440. Its totient is φ = 283567846180.

The previous prime is 311924630807. The next prime is 311924630891. The reversal of 311924630809 is 908036429113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311924630809 - 2¹ = 311924630807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311924630807) 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, 14178392299 + ... + 14178392320.

It is an arithmetic number, because the mean of its divisors is an integer number (85070353860).

Almost surely, 2^311924630809 is an apocalyptic number.

It is an amenable number.

311924630809 is a deficient number, since it is larger than the sum of its proper divisors (28356784631).

311924630809 is a wasteful number, since it uses less digits than its factorization.

311924630809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28356784630.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 311924630809 in words is "three hundred eleven billion, nine hundred twenty-four million, six hundred thirty thousand, eight hundred nine".