1121781701803 has 8 divisors (see below), whose sum is σ = 1285233331680. Its totient is φ = 959129347200.

The previous prime is 1121781701791. The next prime is 1121781701813. The reversal of 1121781701803 is 3081071871211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121781701803 - 2⁹ = 1121781701291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121781701813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199815808 + ... + 199821421.

It is an arithmetic number, because the mean of its divisors is an integer number (160654166460).

Almost surely, 2^{1121781701803} is an apocalyptic number.

1121781701803 is a deficient number, since it is larger than the sum of its proper divisors (163451629877).

1121781701803 is an equidigital number, since it uses as much as digits as its factorization.

1121781701803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399637637.

The product of its (nonzero) digits is 18816, while the sum is 40.

The spelling of 1121781701803 in words is "one trillion, one hundred twenty-one billion, seven hundred eighty-one million, seven hundred one thousand, eight hundred three".