120121877 has 2 divisors, whose sum is σ = 120121878. Its totient is φ = 120121876.

The previous prime is 120121829. The next prime is 120121901. The reversal of 120121877 is 778121021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118178641 + 1943236 = 10871^2 + 1394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120121877 is a prime.

It is a super-3 number, since 3×120121877³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060938 + 60060939.

It is an arithmetic number, because the mean of its divisors is an integer number (60060939).

Almost surely, 2^120121877 is an apocalyptic number.

It is an amenable number.

120121877 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121877 is an equidigital number, since it uses as much as digits as its factorization.

120121877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 120121877 is about 10960.0126368540. The cubic root of 120121877 is about 493.4093442148.

Adding to 120121877 its reverse (778121021), we get a palindrome (898242898).

The spelling of 120121877 in words is "one hundred twenty million, one hundred twenty-one thousand, eight hundred seventy-seven".