1321112140 has 12 divisors (see below), whose sum is σ = 2774335536. Its totient is φ = 528444848.

The previous prime is 1321112131. The next prime is 1321112153. The reversal of 1321112140 is 412111231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33027784 + ... + 33027823.

It is an arithmetic number, because the mean of its divisors is an integer number (231194628).

Almost surely, 2^1321112140 is an apocalyptic number.

1321112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321112140 is an abundant number, since it is smaller than the sum of its proper divisors (1453223396).

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

1321112140 is a wasteful number, since it uses less digits than its factorization.

1321112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66055616 (or 66055614 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1321112140 is about 36347.1063497495. The cubic root of 1321112140 is about 1097.2692983881.

Adding to 1321112140 its reverse (412111231), we get a palindrome (1733223371).

Subtracting from 1321112140 its reverse (412111231), we obtain a palindrome (909000909).

The spelling of 1321112140 in words is "one billion, three hundred twenty-one million, one hundred twelve thousand, one hundred forty".