321042145844 has 24 divisors (see below), whose sum is σ = 651127736448. Its totient is φ = 135651610080.

The previous prime is 321042145763. The next prime is 321042145883. The reversal of 321042145844 is 448541240123.

It is a junction number, because it is equal to n+sod(n) for n = 321042145798 and 321042145807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80743019 + ... + 80746994.

It is an arithmetic number, because the mean of its divisors is an integer number (27130322352).

Almost surely, 2^321042145844 is an apocalyptic number.

It is an amenable number.

321042145844 is an abundant number, since it is smaller than the sum of its proper divisors (330085590604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321042145844 is a wasteful number, since it uses less digits than its factorization.

321042145844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161490095 (or 161490093 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

Adding to 321042145844 its reverse (448541240123), we get a palindrome (769583385967).

The spelling of 321042145844 in words is "three hundred twenty-one billion, forty-two million, one hundred forty-five thousand, eight hundred forty-four".