121023211277 has 2 divisors, whose sum is σ = 121023211278. Its totient is φ = 121023211276.

The previous prime is 121023211229. The next prime is 121023211313. The reversal of 121023211277 is 772112320121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116157590761 + 4865620516 = 340819^2 + 69754^2 .

It is an emirp because it is prime and its reverse (772112320121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121023211277 - 2⁶ = 121023211213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121023211207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511605638 + 60511605639.

It is an arithmetic number, because the mean of its divisors is an integer number (60511605639).

Almost surely, 2^121023211277 is an apocalyptic number.

It is an amenable number.

121023211277 is a deficient number, since it is larger than the sum of its proper divisors (1).

121023211277 is an equidigital number, since it uses as much as digits as its factorization.

121023211277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

Adding to 121023211277 its reverse (772112320121), we get a palindrome (893135531398).

The spelling of 121023211277 in words is "one hundred twenty-one billion, twenty-three million, two hundred eleven thousand, two hundred seventy-seven".