121112320311077 has 2 divisors, whose sum is σ = 121112320311078. Its totient is φ = 121112320311076.

The previous prime is 121112320311053. The next prime is 121112320311131. The reversal of 121112320311077 is 770113023211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109173367343236 + 11938952967841 = 10448606^2 + 3455279^2 .

It is an emirp because it is prime and its reverse (770113023211121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121112320311077 - 2¹⁶ = 121112320245541 is a prime.

It is a super-2 number, since 2×121112320311077² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121112320311277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556160155538 + 60556160155539.

It is an arithmetic number, because the mean of its divisors is an integer number (60556160155539).

Almost surely, 2^{121112320311077} is an apocalyptic number.

It is an amenable number.

121112320311077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112320311077 is an equidigital number, since it uses as much as digits as its factorization.

121112320311077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 32.

Adding to 121112320311077 its reverse (770113023211121), we get a palindrome (891225343522198).

The spelling of 121112320311077 in words is "one hundred twenty-one trillion, one hundred twelve billion, three hundred twenty million, three hundred eleven thousand, seventy-seven".