120863 has 2 divisors, whose sum is σ = 120864. Its totient is φ = 120862.

The previous prime is 120851. The next prime is 120871. The reversal of 120863 is 368021.

It is a strong prime.

It is an emirp because it is prime and its reverse (368021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120863 - 2⁴ = 120847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120863.

It is not a weakly prime, because it can be changed into another prime (120823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60431 + 60432.

It is an arithmetic number, because the mean of its divisors is an integer number (60432).

2¹²⁰⁸⁶³ is an apocalyptic number.

120863 is a deficient number, since it is larger than the sum of its proper divisors (1).

120863 is an equidigital number, since it uses as much as digits as its factorization.

120863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 120863 is about 347.6535631919. The cubic root of 120863 is about 49.4422003311.

Adding to 120863 its reverse (368021), we get a palindrome (488884).

The spelling of 120863 in words is "one hundred twenty thousand, eight hundred sixty-three".