1231116760 has 16 divisors (see below), whose sum is σ = 2770012800. Its totient is φ = 492446688.

The previous prime is 1231116751. The next prime is 1231116767. The reversal of 1231116760 is 676111321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231116767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15388920 + ... + 15388999.

It is an arithmetic number, because the mean of its divisors is an integer number (173125800).

Almost surely, 2^1231116760 is an apocalyptic number.

1231116760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231116760 is an abundant number, since it is smaller than the sum of its proper divisors (1538896040).

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

1231116760 is a wasteful number, since it uses less digits than its factorization.

1231116760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30777930 (or 30777926 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1231116760 is about 35087.2734762905. The cubic root of 1231116760 is about 1071.7654379312.

The spelling of 1231116760 in words is "one billion, two hundred thirty-one million, one hundred sixteen thousand, seven hundred sixty".