1131012045 has 32 divisors (see below), whose sum is σ = 2013897600. Its totient is φ = 602243712.

The previous prime is 1131012017. The next prime is 1131012053. The reversal of 1131012045 is 5402101311.

It is not a de Polignac number, because 1131012045 - 2⁸ = 1131011789 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 82609 + ... + 95321.

It is an arithmetic number, because the mean of its divisors is an integer number (62934300).

Almost surely, 2^1131012045 is an apocalyptic number.

1131012045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131012045 is a deficient number, since it is larger than the sum of its proper divisors (882885555).

1131012045 is a wasteful number, since it uses less digits than its factorization.

1131012045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13386 (or 13380 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1131012045 is about 33630.5225204724. The cubic root of 1131012045 is about 1041.8912962249.

Adding to 1131012045 its reverse (5402101311), we get a palindrome (6533113356).

The spelling of 1131012045 in words is "one billion, one hundred thirty-one million, twelve thousand, forty-five".