1131024531 has 16 divisors (see below), whose sum is σ = 1856040704. Its totient is φ = 596584224.

The previous prime is 1131024529. The next prime is 1131024577. The reversal of 1131024531 is 1354201311.

It is not a de Polignac number, because 1131024531 - 2¹ = 1131024529 is a prime.

It is a super-2 number, since 2×1131024531² = 2558432979447539922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1131024498 and 1131024507.

It is not an unprimeable number, because it can be changed into a prime (1131024511) 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, 2071201 + ... + 2071746.

It is an arithmetic number, because the mean of its divisors is an integer number (116002544).

Almost surely, 2^1131024531 is an apocalyptic number.

1131024531 is a deficient number, since it is larger than the sum of its proper divisors (725016173).

1131024531 is a wasteful number, since it uses less digits than its factorization.

1131024531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142970.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1131024531 is about 33630.7081548991. The cubic root of 1131024531 is about 1041.8951302562.

Adding to 1131024531 its reverse (1354201311), we get a palindrome (2485225842).

The spelling of 1131024531 in words is "one billion, one hundred thirty-one million, twenty-four thousand, five hundred thirty-one".