12147203740 has 24 divisors (see below), whose sum is σ = 29153289312. Its totient is φ = 4164755520.

The previous prime is 12147203737. The next prime is 12147203741. The reversal of 12147203740 is 4730274121.

12147203740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147203741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43382731 + ... + 43383010.

It is an arithmetic number, because the mean of its divisors is an integer number (1214720388).

Almost surely, 2^12147203740 is an apocalyptic number.

12147203740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12147203740 is an abundant number, since it is smaller than the sum of its proper divisors (17006085572).

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

12147203740 is a wasteful number, since it uses less digits than its factorization.

12147203740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86765757 (or 86765755 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

Adding to 12147203740 its reverse (4730274121), we get a palindrome (16877477861).

The spelling of 12147203740 in words is "twelve billion, one hundred forty-seven million, two hundred three thousand, seven hundred forty".