100201123103 has 4 divisors (see below), whose sum is σ = 100202059608. Its totient is φ = 100200186600.

The previous prime is 100201123081. The next prime is 100201123109. The reversal of 100201123103 is 301321102001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100201123103 is a prime.

It is a super-2 number, since 2×100201123103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100201123109) 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, 283448 + ... + 529853.

It is an arithmetic number, because the mean of its divisors is an integer number (25050514902).

Almost surely, 2^100201123103 is an apocalyptic number.

100201123103 is a deficient number, since it is larger than the sum of its proper divisors (936505).

100201123103 is an equidigital number, since it uses as much as digits as its factorization.

100201123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936504.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 100201123103 its reverse (301321102001), we get a palindrome (401522225104).

The spelling of 100201123103 in words is "one hundred billion, two hundred one million, one hundred twenty-three thousand, one hundred three".