121000011203 has 2 divisors, whose sum is σ = 121000011204. Its totient is φ = 121000011202.

The previous prime is 121000011199. The next prime is 121000011227. The reversal of 121000011203 is 302110000121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121000011203 - 2² = 121000011199 is a prime.

It is a super-2 number, since 2×121000011203² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121000011283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500005601 + 60500005602.

It is an arithmetic number, because the mean of its divisors is an integer number (60500005602).

Almost surely, 2^121000011203 is an apocalyptic number.

121000011203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000011203 is an equidigital number, since it uses as much as digits as its factorization.

121000011203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 121000011203 its reverse (302110000121), we get a palindrome (423110011324).

The spelling of 121000011203 in words is "one hundred twenty-one billion, eleven thousand, two hundred three".