1131803123880 has 512 divisors, whose sum is σ = 4035407040000. Its totient is φ = 250342686720.

The previous prime is 1131803123809. The next prime is 1131803123929. The reversal of 1131803123880 is 883213081311.

It is a super-2 number, since 2×1131803123880² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 585515394 + ... + 585517326.

It is an arithmetic number, because the mean of its divisors is an integer number (7881654375).

Almost surely, 2^{1131803123880} is an apocalyptic number.

1131803123880 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 1131803123880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2017703520000).

1131803123880 is an abundant number, since it is smaller than the sum of its proper divisors (2903603916120).

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

1131803123880 is a wasteful number, since it uses less digits than its factorization.

1131803123880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 1131803123880 in words is "one trillion, one hundred thirty-one billion, eight hundred three million, one hundred twenty-three thousand, eight hundred eighty".