11324137721880 has 128 divisors (see below), whose sum is σ = 35761461120000. Its totient is φ = 2860752697344.

The previous prime is 11324137721863. The next prime is 11324137721887. The reversal of 11324137721880 is 8812773142311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11324137721887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138330001 + ... + 138411839.

It is an arithmetic number, because the mean of its divisors is an integer number (279386415000).

Almost surely, 2^{11324137721880} is an apocalyptic number.

11324137721880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11324137721880 is an abundant number, since it is smaller than the sum of its proper divisors (24437323398120).

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

11324137721880 is a wasteful number, since it uses less digits than its factorization.

11324137721880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142561 (or 142557 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 11324137721880 in words is "eleven trillion, three hundred twenty-four billion, one hundred thirty-seven million, seven hundred twenty-one thousand, eight hundred eighty".