1131031432 has 16 divisors (see below), whose sum is σ = 2124746640. Its totient is φ = 564432336.

The previous prime is 1131031423. The next prime is 1131031441. The reversal of 1131031432 is 2341301311.

It is an interprime number because it is at equal distance from previous prime (1131031423) and next prime (1131031441).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130978 + ... + 139345.

It is an arithmetic number, because the mean of its divisors is an integer number (132796665).

Almost surely, 2^1131031432 is an apocalyptic number.

It is an amenable number.

1131031432 is a deficient number, since it is larger than the sum of its proper divisors (993715208).

1131031432 is a wasteful number, since it uses less digits than its factorization.

1131031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270852 (or 270848 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1131031432 is about 33630.8107544258. The cubic root of 1131031432 is about 1041.8972493095.

Adding to 1131031432 its reverse (2341301311), we get a palindrome (3472332743).

The spelling of 1131031432 in words is "one billion, one hundred thirty-one million, thirty-one thousand, four hundred thirty-two".