1131513110 has 32 divisors (see below), whose sum is σ = 2506738752. Its totient is φ = 358104960.

The previous prime is 1131513079. The next prime is 1131513127. The reversal of 1131513110 is 113151311.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 620801 + ... + 622620.

It is an arithmetic number, because the mean of its divisors is an integer number (78335586).

Almost surely, 2^1131513110 is an apocalyptic number.

1131513110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131513110 is an abundant number, since it is smaller than the sum of its proper divisors (1375225642).

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

1131513110 is a wasteful number, since it uses less digits than its factorization.

1131513110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243448.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1131513110 is about 33637.9712527376. The cubic root of 1131513110 is about 1042.0451343115.

Adding to 1131513110 its reverse (113151311), we get a palindrome (1244664421).

The spelling of 1131513110 in words is "one billion, one hundred thirty-one million, five hundred thirteen thousand, one hundred ten".