123202430101 has 4 divisors (see below), whose sum is σ = 123209132332. Its totient is φ = 123195727872.

The previous prime is 123202430009. The next prime is 123202430119. The reversal of 123202430101 is 101034202321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80684402500 + 42518027601 = 284050^2 + 206199^2 .

It is a cyclic number.

It is not a de Polignac number, because 123202430101 - 2²¹ = 123200332949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123202437101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3323466 + ... + 3360331.

It is an arithmetic number, because the mean of its divisors is an integer number (30802283083).

Almost surely, 2^123202430101 is an apocalyptic number.

It is an amenable number.

123202430101 is a deficient number, since it is larger than the sum of its proper divisors (6702231).

123202430101 is an equidigital number, since it uses as much as digits as its factorization.

123202430101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702230.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123202430101 its reverse (101034202321), we get a palindrome (224236632422).

The spelling of 123202430101 in words is "one hundred twenty-three billion, two hundred two million, four hundred thirty thousand, one hundred one".