12131213132201 has 4 divisors (see below), whose sum is σ = 12139136852304. Its totient is φ = 12123289412100.

The previous prime is 12131213132149. The next prime is 12131213132273. The reversal of 12131213132201 is 10223131213121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12131213132201 - 2⁴² = 7733166621097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131213132501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3961857755 + ... + 3961860816.

It is an arithmetic number, because the mean of its divisors is an integer number (3034784213076).

Almost surely, 2^{12131213132201} is an apocalyptic number.

It is an amenable number.

12131213132201 is a deficient number, since it is larger than the sum of its proper divisors (7923720103).

12131213132201 is an equidigital number, since it uses as much as digits as its factorization.

12131213132201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7923720102.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12131213132201 its reverse (10223131213121), we get a palindrome (22354344345322).

The spelling of 12131213132201 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirteen million, one hundred thirty-two thousand, two hundred one".