100225123 has 4 divisors (see below), whose sum is σ = 100310328. Its totient is φ = 100139920.

The previous prime is 100225121. The next prime is 100225159. The reversal of 100225123 is 321522001.

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 100225123 - 2¹ = 100225121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100225097 and 100225106.

It is not an unprimeable number, because it can be changed into a prime (100225121) 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, 40813 + ... + 43198.

It is an arithmetic number, because the mean of its divisors is an integer number (25077582).

Almost surely, 2^100225123 is an apocalyptic number.

100225123 is a deficient number, since it is larger than the sum of its proper divisors (85205).

100225123 is an equidigital number, since it uses as much as digits as its factorization.

100225123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85204.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100225123 is about 10011.2498220752. The cubic root of 100225123 is about 464.5069317804.

Adding to 100225123 its reverse (321522001), we get a palindrome (421747124).

The spelling of 100225123 in words is "one hundred million, two hundred twenty-five thousand, one hundred twenty-three".