1131003144 has 48 divisors (see below), whose sum is σ = 3065781420. Its totient is φ = 376675200.

The previous prime is 1131003067. The next prime is 1131003179. The reversal of 1131003144 is 4413001311.

It can be written as a sum of positive squares in 2 ways, for example, as 1130976900 + 26244 = 33630^2 + 162^2 .

It is a super-2 number, since 2×1131003144² = 2558336223475769472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85794 + ... + 98094.

Almost surely, 2^1131003144 is an apocalyptic number.

It is an amenable number.

1131003144 is an abundant number, since it is smaller than the sum of its proper divisors (1934778276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131003144 is a wasteful number, since it uses less digits than its factorization.

1131003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13590 (or 13583 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1131003144 is about 33630.3901850692. The cubic root of 1131003144 is about 1041.8885630094. Note that the first 3 decimals are identical.

Adding to 1131003144 its reverse (4413001311), we get a palindrome (5544004455).

The spelling of 1131003144 in words is "one billion, one hundred thirty-one million, three thousand, one hundred forty-four".