202323100123 has 8 divisors (see below), whose sum is σ = 214148327120. Its totient is φ = 190615537440.

The previous prime is 202323099989. The next prime is 202323100139. The reversal of 202323100123 is 321001323202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202323100123 - 2⁹ = 202323099611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202323100123.

It is not an unprimeable number, because it can be changed into a prime (202323100163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29412540 + ... + 29419417.

It is an arithmetic number, because the mean of its divisors is an integer number (26768540890).

Almost surely, 2^202323100123 is an apocalyptic number.

202323100123 is a deficient number, since it is larger than the sum of its proper divisors (11825226997).

202323100123 is a wasteful number, since it uses less digits than its factorization.

202323100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58832157.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202323100123 its reverse (321001323202), we get a palindrome (523324423325).

The spelling of 202323100123 in words is "two hundred two billion, three hundred twenty-three million, one hundred thousand, one hundred twenty-three".