12311487108 has 72 divisors (see below), whose sum is σ = 34171798752. Its totient is φ = 3862422144.

The previous prime is 12311487101. The next prime is 12311487119. The reversal of 12311487108 is 80178411321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12311487101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356010 + ... + 389057.

It is an arithmetic number, because the mean of its divisors is an integer number (474608316).

Almost surely, 2^12311487108 is an apocalyptic number.

12311487108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12311487108 is an abundant number, since it is smaller than the sum of its proper divisors (21860311644).

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

12311487108 is a wasteful number, since it uses less digits than its factorization.

12311487108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745103 (or 745089 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

Adding to 12311487108 its reverse (80178411321), we get a palindrome (92489898429).

The spelling of 12311487108 in words is "twelve billion, three hundred eleven million, four hundred eighty-seven thousand, one hundred eight".