101603923 has 4 divisors (see below), whose sum is σ = 101634480. Its totient is φ = 101573368.

The previous prime is 101603897. The next prime is 101603941. The reversal of 101603923 is 329306101.

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 101603923 - 2⁵ = 101603891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101603123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9583 + ... + 17176.

It is an arithmetic number, because the mean of its divisors is an integer number (25408620).

Almost surely, 2^101603923 is an apocalyptic number.

101603923 is a deficient number, since it is larger than the sum of its proper divisors (30557).

101603923 is an equidigital number, since it uses as much as digits as its factorization.

101603923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30556.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 101603923 is about 10079.8771321877. The cubic root of 101603923 is about 466.6273164666.

The spelling of 101603923 in words is "one hundred one million, six hundred three thousand, nine hundred twenty-three".