12113232001 has 8 divisors (see below), whose sum is σ = 13122210920. Its totient is φ = 11181442896.

The previous prime is 12113231993. The next prime is 12113232011. The reversal of 12113232001 is 10023231121.

It can be written as a sum of positive squares in 4 ways, for example, as 5544291600 + 6568940401 = 74460^2 + 81049^2 .

It is not a de Polignac number, because 12113232001 - 2³ = 12113231993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12113232011) 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, 2754570 + ... + 2758963.

It is an arithmetic number, because the mean of its divisors is an integer number (1640276365).

Almost surely, 2^12113232001 is an apocalyptic number.

It is an amenable number.

12113232001 is a deficient number, since it is larger than the sum of its proper divisors (1008978919).

12113232001 is an frugal number, since it uses more digits than its factorization.

12113232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513572 (or 5513546 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12113232001 its reverse (10023231121), we get a palindrome (22136463122).

The spelling of 12113232001 in words is "twelve billion, one hundred thirteen million, two hundred thirty-two thousand, one".