1131013005 has 16 divisors (see below), whose sum is σ = 1826535744. Its totient is φ = 597568640.

The previous prime is 1131013001. The next prime is 1131013061. The reversal of 1131013005 is 5003101311.

1131013005 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1131013005 - 2² = 1131013001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131013001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350736 + ... + 353945.

It is an arithmetic number, because the mean of its divisors is an integer number (114158484).

Almost surely, 2^1131013005 is an apocalyptic number.

1131013005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131013005 is a deficient number, since it is larger than the sum of its proper divisors (695522739).

1131013005 is a wasteful number, since it uses less digits than its factorization.

1131013005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704796.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 1131013005 is about 33630.5367932182. The cubic root of 1131013005 is about 1041.8915910096.

Adding to 1131013005 its reverse (5003101311), we get a palindrome (6134114316).

The spelling of 1131013005 in words is "one billion, one hundred thirty-one million, thirteen thousand, five".