1131885337800 has 384 divisors, whose sum is σ = 4077139046400. Its totient is φ = 254413301760.

The previous prime is 1131885337787. The next prime is 1131885337853. The reversal of 1131885337800 is 87335881311.

It is a Cunningham number, because it is equal to 1063901²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 1131885337800.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 106384881 + ... + 106395519.

It is an arithmetic number, because the mean of its divisors is an integer number (10617549600).

Almost surely, 2^{1131885337800} is an apocalyptic number.

1131885337800 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 1131885337800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2038569523200).

1131885337800 is an abundant number, since it is smaller than the sum of its proper divisors (2945253708600).

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

1131885337800 is a wasteful number, since it uses less digits than its factorization.

1131885337800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085 (or 11076 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 1131885337800 in words is "one trillion, one hundred thirty-one billion, eight hundred eighty-five million, three hundred thirty-seven thousand, eight hundred".