121123201311113 has 2 divisors, whose sum is σ = 121123201311114. Its totient is φ = 121123201311112.

The previous prime is 121123201310987. The next prime is 121123201311157. The reversal of 121123201311113 is 311113102321121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83147990576704 + 37975210734409 = 9118552^2 + 6162403^2 .

It is an emirp because it is prime and its reverse (311113102321121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121123201311113 - 2⁸ = 121123201310857 is a prime.

It is not a weakly prime, because it can be changed into another prime (121123201311163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561600655556 + 60561600655557.

It is an arithmetic number, because the mean of its divisors is an integer number (60561600655557).

Almost surely, 2^{121123201311113} is an apocalyptic number.

It is an amenable number.

121123201311113 is a deficient number, since it is larger than the sum of its proper divisors (1).

121123201311113 is an equidigital number, since it uses as much as digits as its factorization.

121123201311113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 121123201311113 its reverse (311113102321121), we get a palindrome (432236303632234).

The spelling of 121123201311113 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, two hundred one million, three hundred eleven thousand, one hundred thirteen".