1133381731820 has 36 divisors (see below), whose sum is σ = 2577269827440. Its totient is φ = 418479407424.

The previous prime is 1133381731787. The next prime is 1133381731831. The reversal of 1133381731820 is 281371833311.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167656640 + ... + 167663399.

It is an arithmetic number, because the mean of its divisors is an integer number (71590828540).

Almost surely, 2^{1133381731820} is an apocalyptic number.

1133381731820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133381731820 is an abundant number, since it is smaller than the sum of its proper divisors (1443888095620).

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

1133381731820 is a wasteful number, since it uses less digits than its factorization.

1133381731820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335320074 (or 335320059 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 1133381731820 in words is "one trillion, one hundred thirty-three billion, three hundred eighty-one million, seven hundred thirty-one thousand, eight hundred twenty".