321474123 has 16 divisors (see below), whose sum is σ = 491622400. Its totient is φ = 207402120.

The previous prime is 321474119. The next prime is 321474137.

It is a happy number.

321474123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321474123 - 2² = 321474119 is a prime.

It is a super-2 number, since 2×321474123² = 206691223517238258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321474103) 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, 191203 + ... + 192876.

It is an arithmetic number, because the mean of its divisors is an integer number (30726400).

Almost surely, 2^321474123 is an apocalyptic number.

321474123 is a deficient number, since it is larger than the sum of its proper divisors (170148277).

321474123 is a wasteful number, since it uses less digits than its factorization.

321474123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384119 (or 384113 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 321474123 is about 17929.6994676431. The cubic root of 321474123 is about 685.0390678696.

The spelling of 321474123 in words is "three hundred twenty-one million, four hundred seventy-four thousand, one hundred twenty-three".