203320401413 has 4 divisors (see below), whose sum is σ = 203380399020. Its totient is φ = 203260403808.

The previous prime is 203320401397. The next prime is 203320401463. The reversal of 203320401413 is 314104023302.

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 103788354244 + 99532047169 = 322162^2 + 315487^2 .

It is a cyclic number.

It is not a de Polignac number, because 203320401413 - 2⁴ = 203320401397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203320401463) 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, 29993720 + ... + 30000497.

It is an arithmetic number, because the mean of its divisors is an integer number (50845099755).

Almost surely, 2^203320401413 is an apocalyptic number.

It is an amenable number.

203320401413 is a deficient number, since it is larger than the sum of its proper divisors (59997607).

203320401413 is an equidigital number, since it uses as much as digits as its factorization.

203320401413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59997606.

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

Adding to 203320401413 its reverse (314104023302), we get a palindrome (517424424715).

The spelling of 203320401413 in words is "two hundred three billion, three hundred twenty million, four hundred one thousand, four hundred thirteen".