101872103 has 4 divisors (see below), whose sum is σ = 101944920. Its totient is φ = 101799288.

The previous prime is 101872097. The next prime is 101872123. The reversal of 101872103 is 301278101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301278101 = 14713 ⋅20477.

It is a cyclic number.

It is not a de Polignac number, because 101872103 - 2⁶ = 101872039 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101872123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34268 + ... + 37121.

It is an arithmetic number, because the mean of its divisors is an integer number (25486230).

Almost surely, 2^101872103 is an apocalyptic number.

101872103 is a deficient number, since it is larger than the sum of its proper divisors (72817).

101872103 is an equidigital number, since it uses as much as digits as its factorization.

101872103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72816.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 101872103 is about 10093.1711072388. The cubic root of 101872103 is about 467.0375046110.

The spelling of 101872103 in words is "one hundred one million, eight hundred seventy-two thousand, one hundred three".