120401863 has 2 divisors, whose sum is σ = 120401864. Its totient is φ = 120401862.

The previous prime is 120401851. The next prime is 120401867. The reversal of 120401863 is 368104021.

It is a strong prime.

It is an emirp because it is prime and its reverse (368104021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120401863 is a prime.

It is a super-2 number, since 2×120401863² = 28993217227741538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120401867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60200931 + 60200932.

It is an arithmetic number, because the mean of its divisors is an integer number (60200932).

Almost surely, 2^120401863 is an apocalyptic number.

120401863 is a deficient number, since it is larger than the sum of its proper divisors (1).

120401863 is an equidigital number, since it uses as much as digits as its factorization.

120401863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 120401863 is about 10972.7782717049. The cubic root of 120401863 is about 493.7924010374.

Adding to 120401863 its reverse (368104021), we get a palindrome (488505884).

The spelling of 120401863 in words is "one hundred twenty million, four hundred one thousand, eight hundred sixty-three".