12103232464 has 20 divisors (see below), whose sum is σ = 23713498980. Its totient is φ = 5983619840.

The previous prime is 12103232459. The next prime is 12103232483. The reversal of 12103232464 is 46423230121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 865536400 + 11237696064 = 29420^2 + 106008^2 .

It is a super-2 number, since 2×12103232464² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4248307 + ... + 4251154.

It is an arithmetic number, because the mean of its divisors is an integer number (1185674949).

Almost surely, 2^12103232464 is an apocalyptic number.

It is an amenable number.

12103232464 is a deficient number, since it is larger than the sum of its proper divisors (11610266516).

12103232464 is an equidigital number, since it uses as much as digits as its factorization.

12103232464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8499558 (or 8499552 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 12103232464 its reverse (46423230121), we get a palindrome (58526462585).

The spelling of 12103232464 in words is "twelve billion, one hundred three million, two hundred thirty-two thousand, four hundred sixty-four".