12121231233 has 8 divisors (see below), whose sum is σ = 16402860448. Its totient is φ = 7960211424.

The previous prime is 12121231211. The next prime is 12121231261. The reversal of 12121231233 is 33213212121.

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

It is not a de Polignac number, because 12121231233 - 2⁹ = 12121230721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121231033) 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, 30152116 + ... + 30152517.

It is an arithmetic number, because the mean of its divisors is an integer number (2050357556).

Almost surely, 2^12121231233 is an apocalyptic number.

It is an amenable number.

12121231233 is a deficient number, since it is larger than the sum of its proper divisors (4281629215).

12121231233 is an equidigital number, since it uses as much as digits as its factorization.

12121231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60304703.

The product of its digits is 432, while the sum is 21.

Adding to 12121231233 its reverse (33213212121), we get a palindrome (45334443354).

The spelling of 12121231233 in words is "twelve billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty-three".