1321131122140 has 48 divisors (see below), whose sum is σ = 2952335736000. Its totient is φ = 494867653632.

The previous prime is 1321131122137. The next prime is 1321131122243. The reversal of 1321131122140 is 412211311231.

It is a congruent number.

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, 9695355 + ... + 9830674.

It is an arithmetic number, because the mean of its divisors is an integer number (61506994500).

Almost surely, 2^{1321131122140} is an apocalyptic number.

1321131122140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321131122140 is an abundant number, since it is smaller than the sum of its proper divisors (1631204613860).

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

1321131122140 is a wasteful number, since it uses less digits than its factorization.

1321131122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19526254 (or 19526252 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1321131122140 its reverse (412211311231), we get a palindrome (1733342433371).

The spelling of 1321131122140 in words is "one trillion, three hundred twenty-one billion, one hundred thirty-one million, one hundred twenty-two thousand, one hundred forty".