121100001203 has 2 divisors, whose sum is σ = 121100001204. Its totient is φ = 121100001202.

The previous prime is 121100001193. The next prime is 121100001221. The reversal of 121100001203 is 302100001121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121100001203 - 2¹² = 121099997107 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100001223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550000601 + 60550000602.

It is an arithmetic number, because the mean of its divisors is an integer number (60550000602).

Almost surely, 2^121100001203 is an apocalyptic number.

121100001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100001203 is an equidigital number, since it uses as much as digits as its factorization.

121100001203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 121100001203 its reverse (302100001121), we get a palindrome (423200002324).

The spelling of 121100001203 in words is "one hundred twenty-one billion, one hundred million, one thousand, two hundred three".