1121403681792 has 352 divisors, whose sum is σ = 3494134674240. Its totient is φ = 354814525440.

The previous prime is 1121403681781. The next prime is 1121403681817. The reversal of 1121403681792 is 2971863041211.

1121403681792 is a `hidden beast` number, since 1 + 1 + 214 + 0 + 368 + 1 + 79 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41928648 + ... + 41955384.

Almost surely, 2^{1121403681792} is an apocalyptic number.

1121403681792 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 1121403681792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747067337120).

1121403681792 is an abundant number, since it is smaller than the sum of its proper divisors (2372730992448).

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

1121403681792 is a wasteful number, since it uses less digits than its factorization.

1121403681792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26844 (or 26820 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 1121403681792 in words is "one trillion, one hundred twenty-one billion, four hundred three million, six hundred eighty-one thousand, seven hundred ninety-two".