311421304 has 16 divisors (see below), whose sum is σ = 599697000. Its totient is φ = 151502112.

The previous prime is 311421301. The next prime is 311421329. The reversal of 311421304 is 403124113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311421301) 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, 525754 + ... + 526345.

Almost surely, 2^311421304 is an apocalyptic number.

It is an amenable number.

311421304 is a deficient number, since it is larger than the sum of its proper divisors (288275696).

311421304 is a wasteful number, since it uses less digits than its factorization.

311421304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052142 (or 1052138 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 311421304 is about 17647.1330249420. The cubic root of 311421304 is about 677.8226956366.

Adding to 311421304 its reverse (403124113), we get a palindrome (714545417).

The spelling of 311421304 in words is "three hundred eleven million, four hundred twenty-one thousand, three hundred four".