1121287771803 has 8 divisors (see below), whose sum is σ = 1495055515216. Its totient is φ = 747522604800.

The previous prime is 1121287771789. The next prime is 1121287771831. The reversal of 1121287771803 is 3081777821211.

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

It is not a de Polignac number, because 1121287771803 - 2⁹ = 1121287771291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121287771003) 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, 900663 + ... + 1747503.

It is an arithmetic number, because the mean of its divisors is an integer number (186881939402).

Almost surely, 2^{1121287771803} is an apocalyptic number.

1121287771803 is a deficient number, since it is larger than the sum of its proper divisors (373767743413).

1121287771803 is an equidigital number, since it uses as much as digits as its factorization.

1121287771803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288205.

The product of its (nonzero) digits is 263424, while the sum is 48.

The spelling of 1121287771803 in words is "one trillion, one hundred twenty-one billion, two hundred eighty-seven million, seven hundred seventy-one thousand, eight hundred three".