23203443313 has 2 divisors, whose sum is σ = 23203443314. Its totient is φ = 23203443312.

The previous prime is 23203443311. The next prime is 23203443317. The reversal of 23203443313 is 31334430232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21197030464 + 2006412849 = 145592^2 + 44793^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203443313 - 2¹ = 23203443311 is a prime.

Together with 23203443311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23203443311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601721656 + 11601721657.

It is an arithmetic number, because the mean of its divisors is an integer number (11601721657).

Almost surely, 2^23203443313 is an apocalyptic number.

It is an amenable number.

23203443313 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203443313 is an equidigital number, since it uses as much as digits as its factorization.

23203443313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 23203443313 its reverse (31334430232), we get a palindrome (54537873545).

The spelling of 23203443313 in words is "twenty-three billion, two hundred three million, four hundred forty-three thousand, three hundred thirteen".