102880121 has 2 divisors, whose sum is σ = 102880122. Its totient is φ = 102880120.

The previous prime is 102880109. The next prime is 102880147. The reversal of 102880121 is 121088201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99600400 + 3279721 = 9980^2 + 1811^2 .

It is a cyclic number.

It is not a de Polignac number, because 102880121 - 2¹⁰ = 102879097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102880171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51440060 + 51440061.

It is an arithmetic number, because the mean of its divisors is an integer number (51440061).

Almost surely, 2^102880121 is an apocalyptic number.

It is an amenable number.

102880121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102880121 is an equidigital number, since it uses as much as digits as its factorization.

102880121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 102880121 is about 10142.9838312008. The cubic root of 102880121 is about 468.5728870197.

The spelling of 102880121 in words is "one hundred two million, eight hundred eighty thousand, one hundred twenty-one".