12121033203 has 6 divisors (see below), whose sum is σ = 17508159084. Its totient is φ = 8080688796.

The previous prime is 12121033187. The next prime is 12121033231. The reversal of 12121033203 is 30233012121.

12121033203 is a `hidden beast` number, since 121 + 210 + 332 + 0 + 3 = 666.

It is not a de Polignac number, because 12121033203 - 2⁴ = 12121033187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121033703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 673390725 + ... + 673390742.

It is an arithmetic number, because the mean of its divisors is an integer number (2918026514).

Almost surely, 2^12121033203 is an apocalyptic number.

12121033203 is a deficient number, since it is larger than the sum of its proper divisors (5387125881).

12121033203 is a wasteful number, since it uses less digits than its factorization.

12121033203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346781473 (or 1346781470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12121033203 its reverse (30233012121), we get a palindrome (42354045324).

The spelling of 12121033203 in words is "twelve billion, one hundred twenty-one million, thirty-three thousand, two hundred three".