202304310431 has 4 divisors (see below), whose sum is σ = 202332984672. Its totient is φ = 202275636192.

The previous prime is 202304310421. The next prime is 202304310437. The reversal of 202304310431 is 134013403202.

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 202304310431 - 2³⁴ = 185124441247 is a prime.

It is a super-2 number, since 2×202304310431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202304310397 and 202304310406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202304310437) 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, 14326535 + ... + 14340648.

It is an arithmetic number, because the mean of its divisors is an integer number (50583246168).

Almost surely, 2^202304310431 is an apocalyptic number.

202304310431 is a deficient number, since it is larger than the sum of its proper divisors (28674241).

202304310431 is an equidigital number, since it uses as much as digits as its factorization.

202304310431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28674240.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 202304310431 its reverse (134013403202), we get a palindrome (336317713633).

The spelling of 202304310431 in words is "two hundred two billion, three hundred four million, three hundred ten thousand, four hundred thirty-one".