13131222033 has 4 divisors (see below), whose sum is σ = 17508296048. Its totient is φ = 8754148020.

The previous prime is 13131222029. The next prime is 13131222047. The reversal of 13131222033 is 33022213131.

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 not a de Polignac number, because 13131222033 - 2² = 13131222029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131222053) 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, 2188537003 + ... + 2188537008.

It is an arithmetic number, because the mean of its divisors is an integer number (4377074012).

Almost surely, 2^13131222033 is an apocalyptic number.

It is an amenable number.

13131222033 is a deficient number, since it is larger than the sum of its proper divisors (4377074015).

13131222033 is an equidigital number, since it uses as much as digits as its factorization.

13131222033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377074014.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13131222033 its reverse (33022213131), we get a palindrome (46153435164).

The spelling of 13131222033 in words is "thirteen billion, one hundred thirty-one million, two hundred twenty-two thousand, thirty-three".