202434231323 has 4 divisors (see below), whose sum is σ = 202856850240. Its totient is φ = 202011612408.

The previous prime is 202434231319. The next prime is 202434231331. The reversal of 202434231323 is 323132434202.

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

It is a cyclic number.

It is not a de Polignac number, because 202434231323 - 2² = 202434231319 is a prime.

It is a super-2 number, since 2×202434231323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202434831323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211308740 + ... + 211309697.

It is an arithmetic number, because the mean of its divisors is an integer number (50714212560).

Almost surely, 2^202434231323 is an apocalyptic number.

202434231323 is a deficient number, since it is larger than the sum of its proper divisors (422618917).

202434231323 is an equidigital number, since it uses as much as digits as its factorization.

202434231323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422618916.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 202434231323 its reverse (323132434202), we get a palindrome (525566665525).

The spelling of 202434231323 in words is "two hundred two billion, four hundred thirty-four million, two hundred thirty-one thousand, three hundred twenty-three".