102200123 has 4 divisors (see below), whose sum is σ = 102225648. Its totient is φ = 102174600.

The previous prime is 102200117. The next prime is 102200129. The reversal of 102200123 is 321002201.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (102200117) and next prime (102200129).

It is a cyclic number.

It is not a de Polignac number, because 102200123 - 2¹⁰ = 102199099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102200129) 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, 5303 + ... + 15248.

It is an arithmetic number, because the mean of its divisors is an integer number (25556412).

Almost surely, 2^102200123 is an apocalyptic number.

102200123 is a deficient number, since it is larger than the sum of its proper divisors (25525).

102200123 is an equidigital number, since it uses as much as digits as its factorization.

102200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25524.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102200123 is about 10109.4076483244. The cubic root of 102200123 is about 467.5382419840.

Adding to 102200123 its reverse (321002201), we get a palindrome (423202324).

The spelling of 102200123 in words is "one hundred two million, two hundred thousand, one hundred twenty-three".