321142423 has 24 divisors (see below), whose sum is σ = 392999040. Its totient is φ = 261293760.

The previous prime is 321142411. The next prime is 321142429. The reversal of 321142423 is 324241123.

It is not a de Polignac number, because 321142423 - 2¹⁷ = 321011351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321142394 and 321142403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321142429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78513 + ... + 82501.

It is an arithmetic number, because the mean of its divisors is an integer number (16374960).

Almost surely, 2^321142423 is an apocalyptic number.

321142423 is a deficient number, since it is larger than the sum of its proper divisors (71856617).

321142423 is a wasteful number, since it uses less digits than its factorization.

321142423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087 (or 4080 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 321142423 is about 17920.4470647359. The cubic root of 321142423 is about 684.8033768874.

Adding to 321142423 its reverse (324241123), we get a palindrome (645383546).

The spelling of 321142423 in words is "three hundred twenty-one million, one hundred forty-two thousand, four hundred twenty-three".