202423242113 has 4 divisors (see below), whose sum is σ = 209403353940. Its totient is φ = 195443130288.

The previous prime is 202423242083. The next prime is 202423242173. The reversal of 202423242113 is 311242324202.

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 129324386689 + 73098855424 = 359617^2 + 270368^2 .

It is a cyclic number.

It is not a de Polignac number, because 202423242113 - 2²⁰ = 202422193537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202423242173) 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, 3490055870 + ... + 3490055927.

It is an arithmetic number, because the mean of its divisors is an integer number (52350838485).

Almost surely, 2^202423242113 is an apocalyptic number.

It is an amenable number.

202423242113 is a deficient number, since it is larger than the sum of its proper divisors (6980111827).

202423242113 is an equidigital number, since it uses as much as digits as its factorization.

202423242113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980111826.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 202423242113 its reverse (311242324202), we get a palindrome (513665566315).

The spelling of 202423242113 in words is "two hundred two billion, four hundred twenty-three million, two hundred forty-two thousand, one hundred thirteen".