1131019351200 has 1296 divisors, whose sum is σ = 4461387577920. Its totient is φ = 276475161600.

The previous prime is 1131019351199. The next prime is 1131019351243. The reversal of 1131019351200 is 21539101311.

It is a happy number.

1131019351200 is a `hidden beast` number, since 1 + 1 + 3 + 101 + 9 + 351 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 10980770349 + ... + 10980770451.

Almost surely, 2^{1131019351200} is an apocalyptic number.

1131019351200 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 1131019351200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2230693788960).

1131019351200 is an abundant number, since it is smaller than the sum of its proper divisors (3330368226720).

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

1131019351200 is a wasteful number, since it uses less digits than its factorization.

1131019351200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The spelling of 1131019351200 in words is "one trillion, one hundred thirty-one billion, nineteen million, three hundred fifty-one thousand, two hundred".