121323220233077 has 2 divisors, whose sum is σ = 121323220233078. Its totient is φ = 121323220233076.

The previous prime is 121323220233041. The next prime is 121323220233119. The reversal of 121323220233077 is 770332022323121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96527461375921 + 24795758857156 = 9824839^2 + 4979534^2 .

It is an emirp because it is prime and its reverse (770332022323121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121323220233077 - 2³⁶ = 121254500756341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121323220233077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121323220233037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661610116538 + 60661610116539.

It is an arithmetic number, because the mean of its divisors is an integer number (60661610116539).

Almost surely, 2^{121323220233077} is an apocalyptic number.

It is an amenable number.

121323220233077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323220233077 is an equidigital number, since it uses as much as digits as its factorization.

121323220233077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 38.

Adding to 121323220233077 its reverse (770332022323121), we get a palindrome (891655242556198).

The spelling of 121323220233077 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, two hundred twenty million, two hundred thirty-three thousand, seventy-seven".