123701563 has 4 divisors (see below), whose sum is σ = 127691968. Its totient is φ = 119711160.

The previous prime is 123701531. The next prime is 123701569. The reversal of 123701563 is 365107321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123701563 - 2⁵ = 123701531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123701569) 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 in 3 ways as a sum of consecutive naturals, for example, 1995156 + ... + 1995217.

It is an arithmetic number, because the mean of its divisors is an integer number (31922992).

Almost surely, 2^123701563 is an apocalyptic number.

123701563 is a deficient number, since it is larger than the sum of its proper divisors (3990405).

123701563 is an equidigital number, since it uses as much as digits as its factorization.

123701563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990404.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 123701563 is about 11122.1204363197. The cubic root of 123701563 is about 498.2627213838.

Adding to 123701563 its reverse (365107321), we get a palindrome (488808884).

The spelling of 123701563 in words is "one hundred twenty-three million, seven hundred one thousand, five hundred sixty-three".