321145360140 has 96 divisors (see below), whose sum is σ = 981265259520. Its totient is φ = 77828646400.

The previous prime is 321145360127. The next prime is 321145360171. The reversal of 321145360140 is 41063541123.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 321145360098 and 321145360107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2042125 + ... + 2193755.

It is an arithmetic number, because the mean of its divisors is an integer number (10221513120).

Almost surely, 2^321145360140 is an apocalyptic number.

321145360140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321145360140 is an abundant number, since it is smaller than the sum of its proper divisors (660119899380).

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

321145360140 is a wasteful number, since it uses less digits than its factorization.

321145360140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154863 (or 154861 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 321145360140 in words is "three hundred twenty-one billion, one hundred forty-five million, three hundred sixty thousand, one hundred forty".