120828101 has 2 divisors, whose sum is σ = 120828102. Its totient is φ = 120828100.

The previous prime is 120828089. The next prime is 120828161. The reversal of 120828101 is 101828021.

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., 115584001 + 5244100 = 10751^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 120828101 - 2¹⁸ = 120565957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120828161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60414050 + 60414051.

It is an arithmetic number, because the mean of its divisors is an integer number (60414051).

Almost surely, 2^120828101 is an apocalyptic number.

It is an amenable number.

120828101 is a deficient number, since it is larger than the sum of its proper divisors (1).

120828101 is an equidigital number, since it uses as much as digits as its factorization.

120828101 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 120828101 is about 10992.1836320178. The cubic root of 120828101 is about 494.3744108732.

The spelling of 120828101 in words is "one hundred twenty million, eight hundred twenty-eight thousand, one hundred one".