1111291323505 has 16 divisors (see below), whose sum is σ = 1454946629184. Its totient is φ = 808120060480.

The previous prime is 1111291323497. The next prime is 1111291323523. The reversal of 1111291323505 is 5053231921111.

It is not a de Polignac number, because 1111291323505 - 2³ = 1111291323497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657187 + ... + 1629256.

It is an arithmetic number, because the mean of its divisors is an integer number (90934164324).

Almost surely, 2^{1111291323505} is an apocalyptic number.

It is an amenable number.

1111291323505 is a deficient number, since it is larger than the sum of its proper divisors (343655305679).

1111291323505 is a wasteful number, since it uses less digits than its factorization.

1111291323505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295296.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 1111291323505 in words is "one trillion, one hundred eleven billion, two hundred ninety-one million, three hundred twenty-three thousand, five hundred five".