311421332 has 12 divisors (see below), whose sum is σ = 546231840. Its totient is φ = 155355096.

The previous prime is 311421329. The next prime is 311421337. The reversal of 311421332 is 233124113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311421337) 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, 86918 + ... + 90429.

It is an arithmetic number, because the mean of its divisors is an integer number (45519320).

Almost surely, 2^311421332 is an apocalyptic number.

It is an amenable number.

311421332 is a deficient number, since it is larger than the sum of its proper divisors (234810508).

311421332 is a wasteful number, since it uses less digits than its factorization.

311421332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177790 (or 177788 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 311421332 is about 17647.1338182720. The cubic root of 311421332 is about 677.8227159510.

Adding to 311421332 its reverse (233124113), we get a palindrome (544545445).

The spelling of 311421332 in words is "three hundred eleven million, four hundred twenty-one thousand, three hundred thirty-two".