1113421232880 has 1280 divisors, whose sum is σ = 4743982080000. Its totient is φ = 236496568320.

The previous prime is 1113421232879. The next prime is 1113421232909. The reversal of 1113421232880 is 882321243111.

1113421232880 is a `hidden beast` number, since 1 + 1 + 1 + 342 + 1 + 232 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 452793091 + ... + 452795549.

It is an arithmetic number, because the mean of its divisors is an integer number (3706236000).

Almost surely, 2^{1113421232880} is an apocalyptic number.

1113421232880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113421232880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371991040000).

1113421232880 is an abundant number, since it is smaller than the sum of its proper divisors (3630560847120).

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

1113421232880 is a wasteful number, since it uses less digits than its factorization.

1113421232880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 2575 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

Adding to 1113421232880 its reverse (882321243111), we get a palindrome (1995742475991).

The spelling of 1113421232880 in words is "one trillion, one hundred thirteen billion, four hundred twenty-one million, two hundred thirty-two thousand, eight hundred eighty".