321431314 has 4 divisors (see below), whose sum is σ = 482146974. Its totient is φ = 160715656.

The previous prime is 321431269. The next prime is 321431323. The reversal of 321431314 is 413134123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 413134123 = 7549 ⋅54727.

It can be written as a sum of positive squares in only one way, i.e., 177023025 + 144408289 = 13305^2 + 12017^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80357827 + ... + 80357830.

Almost surely, 2^321431314 is an apocalyptic number.

321431314 is a deficient number, since it is larger than the sum of its proper divisors (160715660).

321431314 is a wasteful number, since it uses less digits than its factorization.

321431314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160715659.

The product of its digits is 864, while the sum is 22.

The square root of 321431314 is about 17928.5056265156. The cubic root of 321431314 is about 685.0086588495.

Adding to 321431314 its reverse (413134123), we get a palindrome (734565437).

The spelling of 321431314 in words is "three hundred twenty-one million, four hundred thirty-one thousand, three hundred fourteen".