13203123330011 has 4 divisors (see below), whose sum is σ = 13216637275032. Its totient is φ = 13189609384992.

The previous prime is 13203123329969. The next prime is 13203123330029. The reversal of 13203123330011 is 11003332130231.

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 13203123330011 - 2¹⁰ = 13203123328987 is a prime.

It is a super-2 number, since 2×13203123330011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13203123330611) 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, 6756971045 + ... + 6756972998.

It is an arithmetic number, because the mean of its divisors is an integer number (3304159318758).

Almost surely, 2^{13203123330011} is an apocalyptic number.

13203123330011 is a deficient number, since it is larger than the sum of its proper divisors (13513945021).

13203123330011 is an equidigital number, since it uses as much as digits as its factorization.

13203123330011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13513945020.

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

Adding to 13203123330011 its reverse (11003332130231), we get a palindrome (24206455460242).

The spelling of 13203123330011 in words is "thirteen trillion, two hundred three billion, one hundred twenty-three million, three hundred thirty thousand, eleven".