1099047311232 has 384 divisors, whose sum is σ = 3435021849600. Its totient is φ = 310024765440.

The previous prime is 1099047311231. The next prime is 1099047311237. The reversal of 1099047311232 is 2321137409901.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099047311231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38209368 + ... + 38238120.

It is an arithmetic number, because the mean of its divisors is an integer number (8945369400).

Almost surely, 2^{1099047311232} is an apocalyptic number.

1099047311232 is a gapful number since it is divisible by the number (12) 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 1099047311232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717510924800).

1099047311232 is an abundant number, since it is smaller than the sum of its proper divisors (2335974538368).

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

1099047311232 is a wasteful number, since it uses less digits than its factorization.

1099047311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28846 (or 28821 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 1099047311232 in words is "one trillion, ninety-nine billion, forty-seven million, three hundred eleven thousand, two hundred thirty-two".