321310044140 has 24 divisors (see below), whose sum is σ = 678283828992. Its totient is φ = 127851115520.

The previous prime is 321310044131. The next prime is 321310044149. The reversal of 321310044140 is 41440013123.

It is an interprime number because it is at equal distance from previous prime (321310044131) and next prime (321310044149).

It is not an unprimeable number, because it can be changed into a prime (321310044149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42052469 + ... + 42060108.

It is an arithmetic number, because the mean of its divisors is an integer number (28261826208).

Almost surely, 2^321310044140 is an apocalyptic number.

It is an amenable number.

321310044140 is an abundant number, since it is smaller than the sum of its proper divisors (356973784852).

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

321310044140 is a wasteful number, since it uses less digits than its factorization.

321310044140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84112777 (or 84112775 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 321310044140 its reverse (41440013123), we get a palindrome (362750057263).

The spelling of 321310044140 in words is "three hundred twenty-one billion, three hundred ten million, forty-four thousand, one hundred forty".