1100205204045 has 96 divisors (see below), whose sum is σ = 1934229295872. Its totient is φ = 533452760064.

The previous prime is 1100205204031. The next prime is 1100205204047. The reversal of 1100205204045 is 5404025020011.

It is not a de Polignac number, because 1100205204045 - 2¹⁵ = 1100205171277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100205204047) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14588304 + ... + 14663526.

It is an arithmetic number, because the mean of its divisors is an integer number (20148221832).

Almost surely, 2^{1100205204045} is an apocalyptic number.

1100205204045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100205204045 is a deficient number, since it is larger than the sum of its proper divisors (834024091827).

1100205204045 is a wasteful number, since it uses less digits than its factorization.

1100205204045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75379 (or 75360 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 1100205204045 in words is "one trillion, one hundred billion, two hundred five million, two hundred four thousand, forty-five".