321111140 has 48 divisors (see below), whose sum is σ = 772934400. Its totient is φ = 109771392.

The previous prime is 321111127. The next prime is 321111151. The reversal of 321111140 is 41111123.

It is a super-2 number, since 2×321111140² = 206224728464199200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47066 + ... + 53454.

It is an arithmetic number, because the mean of its divisors is an integer number (16102800).

Almost surely, 2^321111140 is an apocalyptic number.

It is an amenable number.

321111140 is an abundant number, since it is smaller than the sum of its proper divisors (451823260).

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

321111140 is a wasteful number, since it uses less digits than its factorization.

321111140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764 (or 6762 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 321111140 is about 17919.5742136916. The cubic root of 321111140 is about 684.7811402325.

Adding to 321111140 its reverse (41111123), we get a palindrome (362222263).

The spelling of 321111140 in words is "three hundred twenty-one million, one hundred eleven thousand, one hundred forty".