321445256242 has 32 divisors (see below), whose sum is σ = 530622404928. Its totient is φ = 144830400000.

The previous prime is 321445256233. The next prime is 321445256257. The reversal of 321445256242 is 242652544123.

It is a junction number, because it is equal to n+sod(n) for n = 321445256195 and 321445256204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2475742 + ... + 2602342.

It is an arithmetic number, because the mean of its divisors is an integer number (16581950154).

Almost surely, 2^321445256242 is an apocalyptic number.

321445256242 is a deficient number, since it is larger than the sum of its proper divisors (209177148686).

321445256242 is a wasteful number, since it uses less digits than its factorization.

321445256242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127626.

The product of its digits is 460800, while the sum is 40.

The spelling of 321445256242 in words is "three hundred twenty-one billion, four hundred forty-five million, two hundred fifty-six thousand, two hundred forty-two".