120722863 has 2 divisors, whose sum is σ = 120722864. Its totient is φ = 120722862.

The previous prime is 120722821. The next prime is 120722867. The reversal of 120722863 is 368227021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120722863 - 2⁹ = 120722351 is a prime.

It is equal to p_6880432 and since 120722863 and 6880432 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120722867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60361431 + 60361432.

It is an arithmetic number, because the mean of its divisors is an integer number (60361432).

Almost surely, 2^120722863 is an apocalyptic number.

120722863 is a deficient number, since it is larger than the sum of its proper divisors (1).

120722863 is an equidigital number, since it uses as much as digits as its factorization.

120722863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 120722863 is about 10987.3956422803. The cubic root of 120722863 is about 494.2308402804.

Adding to 120722863 its reverse (368227021), we get a palindrome (488949884).

The spelling of 120722863 in words is "one hundred twenty million, seven hundred twenty-two thousand, eight hundred sixty-three".