11712235820 has 24 divisors (see below), whose sum is σ = 24597838944. Its totient is φ = 4684486016.

The previous prime is 11712235817. The next prime is 11712235841. The reversal of 11712235820 is 2853221711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331529 + ... + 365151.

It is an arithmetic number, because the mean of its divisors is an integer number (1024909956).

Almost surely, 2^11712235820 is an apocalyptic number.

11712235820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11712235820 is an abundant number, since it is smaller than the sum of its proper divisors (12885603124).

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

11712235820 is a wasteful number, since it uses less digits than its factorization.

11712235820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51049 (or 51047 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 11712235820 in words is "eleven billion, seven hundred twelve million, two hundred thirty-five thousand, eight hundred twenty".