1121781701799 has 32 divisors (see below), whose sum is σ = 1815757228800. Its totient is φ = 678826435680.

The previous prime is 1121781701791. The next prime is 1121781701813. The reversal of 1121781701799 is 9971071871211.

It is not a de Polignac number, because 1121781701799 - 2³ = 1121781701791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121781701791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2698129 + ... + 3086010.

It is an arithmetic number, because the mean of its divisors is an integer number (56742413400).

Almost surely, 2^{1121781701799} is an apocalyptic number.

1121781701799 is a deficient number, since it is larger than the sum of its proper divisors (693975527001).

1121781701799 is a wasteful number, since it uses less digits than its factorization.

1121781701799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784812 (or 5784806 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 54.

The spelling of 1121781701799 in words is "one trillion, one hundred twenty-one billion, seven hundred eighty-one million, seven hundred one thousand, seven hundred ninety-nine".