322401331 has 12 divisors (see below), whose sum is σ = 375331320. Its totient is φ = 276128160.

The previous prime is 322401301. The next prime is 322401353. The reversal of 322401331 is 133104223.

It is a de Polignac number, because none of the positive numbers 2^k-322401331 is a prime.

It is a super-2 number, since 2×322401331² = 207885236461143122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 322401299 and 322401308.

It is not an unprimeable number, because it can be changed into a prime (322401301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116775 + ... + 119503.

It is an arithmetic number, because the mean of its divisors is an integer number (31277610).

Almost surely, 2^322401331 is an apocalyptic number.

322401331 is a deficient number, since it is larger than the sum of its proper divisors (52929989).

322401331 is a wasteful number, since it uses less digits than its factorization.

322401331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 322401331 is about 17955.5376137837. The cubic root of 322401331 is about 685.6970410118.

Adding to 322401331 its reverse (133104223), we get a palindrome (455505554).

The spelling of 322401331 in words is "three hundred twenty-two million, four hundred one thousand, three hundred thirty-one".