121012122011203 has 2 divisors, whose sum is σ = 121012122011204. Its totient is φ = 121012122011202.

The previous prime is 121012122011191. The next prime is 121012122011227. The reversal of 121012122011203 is 302110221210121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121012122011203 - 2¹³ = 121012122003011 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012122011603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506061005601 + 60506061005602.

It is an arithmetic number, because the mean of its divisors is an integer number (60506061005602).

Almost surely, 2^{121012122011203} is an apocalyptic number.

121012122011203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012122011203 is an equidigital number, since it uses as much as digits as its factorization.

121012122011203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121012122011203 its reverse (302110221210121), we get a palindrome (423122343221324).

The spelling of 121012122011203 in words is "one hundred twenty-one trillion, twelve billion, one hundred twenty-two million, eleven thousand, two hundred three".