12203115140 has 24 divisors (see below), whose sum is σ = 26060892480. Its totient is φ = 4798512608.

The previous prime is 12203115139. The next prime is 12203115143. The reversal of 12203115140 is 4151130221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (12203115143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5169632 + ... + 5171991.

It is an arithmetic number, because the mean of its divisors is an integer number (1085870520).

Almost surely, 2^12203115140 is an apocalyptic number.

12203115140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203115140 is an abundant number, since it is smaller than the sum of its proper divisors (13857777340).

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

12203115140 is a wasteful number, since it uses less digits than its factorization.

12203115140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341691 (or 10341689 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 12203115140 its reverse (4151130221), we get a palindrome (16354245361).

The spelling of 12203115140 in words is "twelve billion, two hundred three million, one hundred fifteen thousand, one hundred forty".