12133121001 has 8 divisors (see below), whose sum is σ = 16399104480. Its totient is φ = 7977942432.

The previous prime is 12133120997. The next prime is 12133121027. The reversal of 12133121001 is 10012133121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12133121001 - 2² = 12133120997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12133121041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27700971 + ... + 27701408.

It is an arithmetic number, because the mean of its divisors is an integer number (2049888060).

Almost surely, 2^12133121001 is an apocalyptic number.

It is an amenable number.

12133121001 is a deficient number, since it is larger than the sum of its proper divisors (4265983479).

12133121001 is an equidigital number, since it uses as much as digits as its factorization.

12133121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55402455.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12133121001 its reverse (10012133121), we get a palindrome (22145254122).

The spelling of 12133121001 in words is "twelve billion, one hundred thirty-three million, one hundred twenty-one thousand, one".