321322430242 has 32 divisors (see below), whose sum is σ = 558508665024. Its totient is φ = 137024908800.

The previous prime is 321322430237. The next prime is 321322430243. The reversal of 321322430242 is 242034223123.

It is a self number, because there is not a number n which added to its sum of digits gives 321322430242.

It is not an unprimeable number, because it can be changed into a prime (321322430243) 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, 1255384 + ... + 1489507.

It is an arithmetic number, because the mean of its divisors is an integer number (17453395782).

Almost surely, 2^321322430242 is an apocalyptic number.

321322430242 is a deficient number, since it is larger than the sum of its proper divisors (237186234782).

321322430242 is a wasteful number, since it uses less digits than its factorization.

321322430242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745234.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 321322430242 its reverse (242034223123), we get a palindrome (563356653365).

The spelling of 321322430242 in words is "three hundred twenty-one billion, three hundred twenty-two million, four hundred thirty thousand, two hundred forty-two".