1100491803 has 6 divisors (see below), whose sum is σ = 1589599284. Its totient is φ = 733661196.

The previous prime is 1100491759. The next prime is 1100491807. The reversal of 1100491803 is 3081940011.

It is not a de Polignac number, because 1100491803 - 2⁸ = 1100491547 is a prime.

It is a super-2 number, since 2×1100491803² = 2422164416940381618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100491807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61138425 + ... + 61138442.

It is an arithmetic number, because the mean of its divisors is an integer number (264933214).

Almost surely, 2^1100491803 is an apocalyptic number.

1100491803 is a deficient number, since it is larger than the sum of its proper divisors (489107481).

1100491803 is a wasteful number, since it uses less digits than its factorization.

1100491803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122276873 (or 122276870 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1100491803 is about 33173.6612842176. The cubic root of 1100491803 is about 1032.4339344917.

The spelling of 1100491803 in words is "one billion, one hundred million, four hundred ninety-one thousand, eight hundred three".