10203321013313 has 4 divisors (see below), whose sum is σ = 10262299747668. Its totient is φ = 10144342278960.

The previous prime is 10203321013279. The next prime is 10203321013349. The reversal of 10203321013313 is 31331012330201.

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 9684189235249 + 519131778064 = 3111943^2 + 720508^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203321013313 - 2²⁰ = 10203319964737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203321019313) 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, 29489366918 + ... + 29489367263.

It is an arithmetic number, because the mean of its divisors is an integer number (2565574936917).

Almost surely, 2^{10203321013313} is an apocalyptic number.

It is an amenable number.

10203321013313 is a deficient number, since it is larger than the sum of its proper divisors (58978734355).

10203321013313 is an equidigital number, since it uses as much as digits as its factorization.

10203321013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58978734354.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 10203321013313 its reverse (31331012330201), we get a palindrome (41534333343514).

The spelling of 10203321013313 in words is "ten trillion, two hundred three billion, three hundred twenty-one million, thirteen thousand, three hundred thirteen".