201202423 has 2 divisors, whose sum is σ = 201202424. Its totient is φ = 201202422.

The previous prime is 201202387. The next prime is 201202433. The reversal of 201202423 is 324202102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201202423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201202397 and 201202406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201202433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601211 + 100601212.

It is an arithmetic number, because the mean of its divisors is an integer number (100601212).

Almost surely, 2^201202423 is an apocalyptic number.

201202423 is a deficient number, since it is larger than the sum of its proper divisors (1).

201202423 is an equidigital number, since it uses as much as digits as its factorization.

201202423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 201202423 is about 14184.5839910799. The cubic root of 201202423 is about 585.9731755127.

Adding to 201202423 its reverse (324202102), we get a palindrome (525404525).

The spelling of 201202423 in words is "two hundred one million, two hundred two thousand, four hundred twenty-three".