13231520633 has 4 divisors (see below), whose sum is σ = 13250893968. Its totient is φ = 13212147300.

The previous prime is 13231520593. The next prime is 13231520641. The reversal of 13231520633 is 33602513231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13231520633 - 2⁸ = 13231520377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13231520596 and 13231520605.

It is not an unprimeable number, because it can be changed into a prime (13231520683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9685643 + ... + 9687008.

It is an arithmetic number, because the mean of its divisors is an integer number (3312723492).

Almost surely, 2^13231520633 is an apocalyptic number.

It is an amenable number.

13231520633 is a deficient number, since it is larger than the sum of its proper divisors (19373335).

13231520633 is an equidigital number, since it uses as much as digits as its factorization.

13231520633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19373334.

The product of its (nonzero) digits is 9720, while the sum is 29.

The spelling of 13231520633 in words is "thirteen billion, two hundred thirty-one million, five hundred twenty thousand, six hundred thirty-three".