1112472291920 has 80 divisors (see below), whose sum is σ = 2824542342720. Its totient is φ = 404118451200.

The previous prime is 1112472291881. The next prime is 1112472291923. The reversal of 1112472291920 is 291922742111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112472291923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203516 + ... + 1505444.

It is an arithmetic number, because the mean of its divisors is an integer number (35306779284).

Almost surely, 2^{1112472291920} is an apocalyptic number.

1112472291920 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 1112472291920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1412271171360).

1112472291920 is an abundant number, since it is smaller than the sum of its proper divisors (1712070050800).

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

1112472291920 is a wasteful number, since it uses less digits than its factorization.

1112472291920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302924 (or 1302918 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 1112472291920 in words is "one trillion, one hundred twelve billion, four hundred seventy-two million, two hundred ninety-one thousand, nine hundred twenty".