321461131 has 2 divisors, whose sum is σ = 321461132. Its totient is φ = 321461130.

The previous prime is 321461113. The next prime is 321461159. The reversal of 321461131 is 131164123.

Together with previous prime (321461113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (131164123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321461131 - 2⁵ = 321461099 is a prime.

It is a super-2 number, since 2×321461131² = 206674517487598322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321461531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160730565 + 160730566.

It is an arithmetic number, because the mean of its divisors is an integer number (160730566).

Almost surely, 2^321461131 is an apocalyptic number.

321461131 is a deficient number, since it is larger than the sum of its proper divisors (1).

321461131 is an equidigital number, since it uses as much as digits as its factorization.

321461131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 321461131 is about 17929.3371600849. The cubic root of 321461131 is about 685.0298393949.

The spelling of 321461131 in words is "three hundred twenty-one million, four hundred sixty-one thousand, one hundred thirty-one".