1130811903 has 24 divisors (see below), whose sum is σ = 1760442320. Its totient is φ = 695329920.

The previous prime is 1130811901. The next prime is 1130811907. The reversal of 1130811903 is 3091180311.

It is a happy number.

It is not a de Polignac number, because 1130811903 - 2¹ = 1130811901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130811901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181683 + ... + 187803.

Almost surely, 2^1130811903 is an apocalyptic number.

1130811903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1130811903 is a deficient number, since it is larger than the sum of its proper divisors (629630417).

1130811903 is a wasteful number, since it uses less digits than its factorization.

1130811903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7719 (or 7716 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1130811903 is about 33627.5467883103. The cubic root of 1130811903 is about 1041.8298354856.

The spelling of 1130811903 in words is "one billion, one hundred thirty million, eight hundred eleven thousand, nine hundred three".