1129731855320 has 64 divisors (see below), whose sum is σ = 2601734541120. Its totient is φ = 441375105024.

The previous prime is 1129731855233. The next prime is 1129731855349. The reversal of 1129731855320 is 235581379211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1577369 + ... + 2178888.

It is an arithmetic number, because the mean of its divisors is an integer number (40652102205).

Almost surely, 2^{1129731855320} is an apocalyptic number.

1129731855320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129731855320 is an abundant number, since it is smaller than the sum of its proper divisors (1472002685800).

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

1129731855320 is a wasteful number, since it uses less digits than its factorization.

1129731855320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756444 (or 3756440 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 1129731855320 in words is "one trillion, one hundred twenty-nine billion, seven hundred thirty-one million, eight hundred fifty-five thousand, three hundred twenty".