13132331323021 has 4 divisors (see below), whose sum is σ = 13139848400512. Its totient is φ = 13124814245532.

The previous prime is 13132331323019. The next prime is 13132331323039. The reversal of 13132331323021 is 12032313323131.

It is a happy number.

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 13132331323021 - 2¹ = 13132331323019 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 (13132331323421) 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, 3758536125 + ... + 3758539618.

It is an arithmetic number, because the mean of its divisors is an integer number (3284962100128).

Almost surely, 2^{13132331323021} is an apocalyptic number.

It is an amenable number.

13132331323021 is a deficient number, since it is larger than the sum of its proper divisors (7517077491).

13132331323021 is an equidigital number, since it uses as much as digits as its factorization.

13132331323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7517077490.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 13132331323021 its reverse (12032313323131), we get a palindrome (25164644646152).

The spelling of 13132331323021 in words is "thirteen trillion, one hundred thirty-two billion, three hundred thirty-one million, three hundred twenty-three thousand, twenty-one".