121231122003 has 12 divisors (see below), whose sum is σ = 175259160648. Its totient is φ = 80752652640.

The previous prime is 121231121951. The next prime is 121231122031. The reversal of 121231122003 is 300221132121.

It is not a de Polignac number, because 121231122003 - 2⁹ = 121231121491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121231122043) 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 11 ways as a sum of consecutive naturals, for example, 5663338 + ... + 5684703.

It is an arithmetic number, because the mean of its divisors is an integer number (14604930054).

Almost surely, 2^121231122003 is an apocalyptic number.

121231122003 is a deficient number, since it is larger than the sum of its proper divisors (54028038645).

121231122003 is a wasteful number, since it uses less digits than its factorization.

121231122003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11349234 (or 11349231 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121231122003 its reverse (300221132121), we get a palindrome (421452254124).

The spelling of 121231122003 in words is "one hundred twenty-one billion, two hundred thirty-one million, one hundred twenty-two thousand, three".