321342131 has 32 divisors (see below), whose sum is σ = 376455168. Its totient is φ = 271434240.

The previous prime is 321342113. The next prime is 321342157. The reversal of 321342131 is 131243123.

It is not a de Polignac number, because 321342131 - 2⁶ = 321342067 is a prime.

It is a super-2 number, since 2×321342131² = 206521530311242322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321341131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2345495 + ... + 2345631.

It is an arithmetic number, because the mean of its divisors is an integer number (11764224).

Almost surely, 2^321342131 is an apocalyptic number.

321342131 is a deficient number, since it is larger than the sum of its proper divisors (55113037).

321342131 is a wasteful number, since it uses less digits than its factorization.

321342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

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

The square root of 321342131 is about 17926.0182695433. The cubic root of 321342131 is about 684.9452997683.

Adding to 321342131 its reverse (131243123), we get a palindrome (452585254).

The spelling of 321342131 in words is "three hundred twenty-one million, three hundred forty-two thousand, one hundred thirty-one".