13133231023331 has 4 divisors (see below), whose sum is σ = 13168440758352. Its totient is φ = 13098021288312.

The previous prime is 13133231023279. The next prime is 13133231023337. The reversal of 13133231023331 is 13332013233131.

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 13133231023331 - 2⁶ = 13133231023267 is a prime.

It is a super-2 number, since 2×13133231023331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13133231023294 and 13133231023303.

It is not an unprimeable number, because it can be changed into a prime (13133231023337) 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, 17604866951 + ... + 17604867696.

It is an arithmetic number, because the mean of its divisors is an integer number (3292110189588).

Almost surely, 2^{13133231023331} is an apocalyptic number.

13133231023331 is a deficient number, since it is larger than the sum of its proper divisors (35209735021).

13133231023331 is an equidigital number, since it uses as much as digits as its factorization.

13133231023331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35209735020.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 13133231023331 its reverse (13332013233131), we get a palindrome (26465244256462).

The spelling of 13133231023331 in words is "thirteen trillion, one hundred thirty-three billion, two hundred thirty-one million, twenty-three thousand, three hundred thirty-one".