324131421 has 16 divisors (see below), whose sum is σ = 437359104. Its totient is φ = 213505584.

The previous prime is 324131383. The next prime is 324131429. The reversal of 324131421 is 124131423.

It is not a de Polignac number, because 324131421 - 2⁹ = 324130909 is a prime.

It is a super-2 number, since 2×324131421² = 210122356158958482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324131429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180490 + ... + 182276.

It is an arithmetic number, because the mean of its divisors is an integer number (27334944).

Almost surely, 2^324131421 is an apocalyptic number.

It is an amenable number.

324131421 is a deficient number, since it is larger than the sum of its proper divisors (113227683).

324131421 is a wasteful number, since it uses less digits than its factorization.

324131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480.

The product of its digits is 576, while the sum is 21.

The square root of 324131421 is about 18003.6502132207. The cubic root of 324131421 is about 686.9213968620.

Adding to 324131421 its reverse (124131423), we get a palindrome (448262844).

The spelling of 324131421 in words is "three hundred twenty-four million, one hundred thirty-one thousand, four hundred twenty-one".