1011131575 has 12 divisors (see below), whose sum is σ = 1254214368. Its totient is φ = 808640000.

The previous prime is 1011131551. The next prime is 1011131587. The reversal of 1011131575 is 5751311101.

1011131575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011131575 - 2¹⁵ = 1011098807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a congruent number.

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, 114519 + ... + 123031.

It is an arithmetic number, because the mean of its divisors is an integer number (104517864).

Almost surely, 2^1011131575 is an apocalyptic number.

1011131575 is a deficient number, since it is larger than the sum of its proper divisors (243082793).

1011131575 is an equidigital number, since it uses as much as digits as its factorization.

1011131575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13274 (or 13269 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 25.

The square root of 1011131575 is about 31798.2951587031. The cubic root of 1011131575 is about 1003.6968415216.

Adding to 1011131575 its reverse (5751311101), we get a palindrome (6762442676).

The spelling of 1011131575 in words is "one billion, eleven million, one hundred thirty-one thousand, five hundred seventy-five".