121123201311163 has 2 divisors, whose sum is σ = 121123201311164. Its totient is φ = 121123201311162.

The previous prime is 121123201311157. The next prime is 121123201311179. The reversal of 121123201311163 is 361113102321121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121123201311163 - 2²¹ = 121123199214011 is a prime.

It is not a weakly prime, because it can be changed into another prime (121123201311113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561600655581 + 60561600655582.

It is an arithmetic number, because the mean of its divisors is an integer number (60561600655582).

Almost surely, 2^{121123201311163} is an apocalyptic number.

121123201311163 is a deficient number, since it is larger than the sum of its proper divisors (1).

121123201311163 is an equidigital number, since it uses as much as digits as its factorization.

121123201311163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 121123201311163 its reverse (361113102321121), we get a palindrome (482236303632284).

The spelling of 121123201311163 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, two hundred one million, three hundred eleven thousand, one hundred sixty-three".