123102030202 has 8 divisors (see below), whose sum is σ = 184712447700. Its totient is φ = 61531214304.

The previous prime is 123102030167. The next prime is 123102030203. The reversal of 123102030202 is 202030201321.

It can be written as a sum of positive squares in 2 ways, for example, as 103633130241 + 19468899961 = 321921^2 + 139531^2 .

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

It is not an unprimeable number, because it can be changed into a prime (123102030203) 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, 9892627 + ... + 9905062.

Almost surely, 2^123102030202 is an apocalyptic number.

123102030202 is a deficient number, since it is larger than the sum of its proper divisors (61610417498).

123102030202 is a wasteful number, since it uses less digits than its factorization.

123102030202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19800800.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123102030202 its reverse (202030201321), we get a palindrome (325132231523).

The spelling of 123102030202 in words is "one hundred twenty-three billion, one hundred two million, thirty thousand, two hundred two".