1131418503 has 16 divisors (see below), whose sum is σ = 1684128000. Its totient is φ = 750700440.

The previous prime is 1131418471. The next prime is 1131418543. The reversal of 1131418503 is 3058141311.

1131418503 is a `hidden beast` number, since 1 + 13 + 141 + 8 + 503 = 666.

It is not a de Polignac number, because 1131418503 - 2⁵ = 1131418471 is a prime.

It is a super-2 number, since 2×1131418503² = 2560215657861522018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131418543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93603 + ... + 104996.

It is an arithmetic number, because the mean of its divisors is an integer number (105258000).

Almost surely, 2^1131418503 is an apocalyptic number.

1131418503 is a deficient number, since it is larger than the sum of its proper divisors (552709497).

1131418503 is a wasteful number, since it uses less digits than its factorization.

1131418503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198819 (or 198813 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1131418503 is about 33636.5649702820. The cubic root of 1131418503 is about 1042.0160913392.

Adding to 1131418503 its reverse (3058141311), we get a palindrome (4189559814).

The spelling of 1131418503 in words is "one billion, one hundred thirty-one million, four hundred eighteen thousand, five hundred three".