12115345000 has 80 divisors (see below), whose sum is σ = 30966962400. Its totient is φ = 4405560000.

The previous prime is 12115344991. The next prime is 12115345007. The reversal of 12115345000 is 54351121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12115345007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55140 + ... + 165139.

It is an arithmetic number, because the mean of its divisors is an integer number (387087030).

Almost surely, 2^12115345000 is an apocalyptic number.

12115345000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12115345000 is an abundant number, since it is smaller than the sum of its proper divisors (18851617400).

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

12115345000 is a wasteful number, since it uses less digits than its factorization.

12115345000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220316 (or 220297 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 12115345000 its reverse (54351121), we get a palindrome (12169696121).

The spelling of 12115345000 in words is "twelve billion, one hundred fifteen million, three hundred forty-five thousand".