203323011324401 has 4 divisors (see below), whose sum is σ = 203327971310052. Its totient is φ = 203318051338752.

The previous prime is 203323011324379. The next prime is 203323011324409. The reversal of 203323011324401 is 104423110323302.

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 87928129000000 + 115394882324401 = 9377000^2 + 10742201^2 .

It is a cyclic number.

It is not a de Polignac number, because 203323011324401 - 2¹⁴ = 203323011308017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203323011324409) 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, 2479931336 + ... + 2480013321.

It is an arithmetic number, because the mean of its divisors is an integer number (50831992827513).

Almost surely, 2^{203323011324401} is an apocalyptic number.

It is an amenable number.

203323011324401 is a deficient number, since it is larger than the sum of its proper divisors (4959985651).

203323011324401 is an equidigital number, since it uses as much as digits as its factorization.

203323011324401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959985650.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 203323011324401 its reverse (104423110323302), we get a palindrome (307746121647703).

The spelling of 203323011324401 in words is "two hundred three trillion, three hundred twenty-three billion, eleven million, three hundred twenty-four thousand, four hundred one".