1117131372 has 96 divisors (see below), whose sum is σ = 3484275200. Its totient is φ = 302377536.

The previous prime is 1117131361. The next prime is 1117131373. The reversal of 1117131372 is 2731317111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1117131373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24523 + ... + 53250.

Almost surely, 2^1117131372 is an apocalyptic number.

1117131372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1117131372 is an abundant number, since it is smaller than the sum of its proper divisors (2367143828).

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

1117131372 is a wasteful number, since it uses less digits than its factorization.

1117131372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77812 (or 77804 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 1117131372 is about 33423.5152549818. The cubic root of 1117131372 is about 1037.6114353040.

Adding to 1117131372 its reverse (2731317111), we get a palindrome (3848448483).

The spelling of 1117131372 in words is "one billion, one hundred seventeen million, one hundred thirty-one thousand, three hundred seventy-two".