1090208920903 has 8 divisors (see below), whose sum is σ = 1093053723840. Its totient is φ = 1087364335200.

The previous prime is 1090208920897. The next prime is 1090208920919. The reversal of 1090208920903 is 3090298020901.

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 1090208920903 - 2³⁷ = 952769967431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1090208920903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090208920403) 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, 16655826 + ... + 16721152.

It is an arithmetic number, because the mean of its divisors is an integer number (136631715480).

Almost surely, 2^{1090208920903} is an apocalyptic number.

1090208920903 is a deficient number, since it is larger than the sum of its proper divisors (2844802937).

1090208920903 is an equidigital number, since it uses as much as digits as its factorization.

1090208920903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108617.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 1090208920903 in words is "one trillion, ninety billion, two hundred eight million, nine hundred twenty thousand, nine hundred three".