321012421400044 has 24 divisors (see below), whose sum is σ = 612846174660048. Its totient is φ = 145913718128640.

The previous prime is 321012421400009. The next prime is 321012421400137. The reversal of 321012421400044 is 440004124210123.

It is a junction number, because it is equal to n+sod(n) for n = 321012421399985 and 321012421400021.

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, 19080829 + ... + 31719124.

It is an arithmetic number, because the mean of its divisors is an integer number (25535257277502).

Almost surely, 2^{321012421400044} is an apocalyptic number.

It is an amenable number.

321012421400044 is a deficient number, since it is larger than the sum of its proper divisors (291833753260004).

321012421400044 is a wasteful number, since it uses less digits than its factorization.

321012421400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50943585 (or 50943583 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 321012421400044 its reverse (440004124210123), we get a palindrome (761016545610167).

The spelling of 321012421400044 in words is "three hundred twenty-one trillion, twelve billion, four hundred twenty-one million, four hundred thousand, forty-four".