13011221330033 has 4 divisors (see below), whose sum is σ = 13011232907940. Its totient is φ = 13011209752128.

The previous prime is 13011221329969. The next prime is 13011221330057. The reversal of 13011221330033 is 33003312211031.

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 8032508252224 + 4978713077809 = 2834168^2 + 2231303^2 .

It is a cyclic number.

It is not a de Polignac number, because 13011221330033 - 2⁶ = 13011221329969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13011221329990 and 13011221330008.

It is not an unprimeable number, because it can be changed into a prime (13011221330333) 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, 3897188 + ... + 6419541.

It is an arithmetic number, because the mean of its divisors is an integer number (3252808226985).

Almost surely, 2^{13011221330033} is an apocalyptic number.

It is an amenable number.

13011221330033 is a deficient number, since it is larger than the sum of its proper divisors (11577907).

13011221330033 is a wasteful number, since it uses less digits than its factorization.

13011221330033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11577906.

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

Adding to 13011221330033 its reverse (33003312211031), we get a palindrome (46014533541064).

The spelling of 13011221330033 in words is "thirteen trillion, eleven billion, two hundred twenty-one million, three hundred thirty thousand, thirty-three".