1123585131 has 16 divisors (see below), whose sum is σ = 1588356000. Its totient is φ = 704053248.

The previous prime is 1123585123. The next prime is 1123585157. The reversal of 1123585131 is 1315853211.

It is not a de Polignac number, because 1123585131 - 2³ = 1123585123 is a prime.

It is a super-2 number, since 2×1123585131² = 2524887093208574322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123585171) 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, 24895 + ... + 53543.

It is an arithmetic number, because the mean of its divisors is an integer number (99272250).

Almost surely, 2^1123585131 is an apocalyptic number.

1123585131 is a deficient number, since it is larger than the sum of its proper divisors (464770869).

1123585131 is a wasteful number, since it uses less digits than its factorization.

1123585131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29438.

The product of its digits is 3600, while the sum is 30.

The square root of 1123585131 is about 33519.9214050391. The cubic root of 1123585131 is about 1039.6057217828.

The spelling of 1123585131 in words is "one billion, one hundred twenty-three million, five hundred eighty-five thousand, one hundred thirty-one".