311034869 has 4 divisors (see below), whose sum is σ = 311070144. Its totient is φ = 310999596.

The previous prime is 311034859. The next prime is 311034881. The reversal of 311034869 is 968430113.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 968430113 = 7 ⋅138347159.

It is a cyclic number.

It is not a de Polignac number, because 311034869 - 2¹² = 311030773 is a prime.

It is a super-2 number, since 2×311034869² = 193485379467694322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311034809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8564 + ... + 26370.

It is an arithmetic number, because the mean of its divisors is an integer number (77767536).

Almost surely, 2^311034869 is an apocalyptic number.

It is an amenable number.

311034869 is a deficient number, since it is larger than the sum of its proper divisors (35275).

311034869 is a wasteful number, since it uses less digits than its factorization.

311034869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35274.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 311034869 is about 17636.1806806349. The cubic root of 311034869 is about 677.5422151135.

The spelling of 311034869 in words is "three hundred eleven million, thirty-four thousand, eight hundred sixty-nine".