131222332133 has 4 divisors (see below), whose sum is σ = 131231527308. Its totient is φ = 131213136960.

The previous prime is 131222332123. The next prime is 131222332139. The reversal of 131222332133 is 331233222131.

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 35232040804 + 95990291329 = 187702^2 + 309823^2 .

It is a cyclic number.

It is not a de Polignac number, because 131222332133 - 2²² = 131218137829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222332139) 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, 4576148 + ... + 4604733.

It is an arithmetic number, because the mean of its divisors is an integer number (32807881827).

Almost surely, 2^131222332133 is an apocalyptic number.

It is an amenable number.

131222332133 is a deficient number, since it is larger than the sum of its proper divisors (9195175).

131222332133 is an equidigital number, since it uses as much as digits as its factorization.

131222332133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9195174.

The product of its digits is 3888, while the sum is 26.

Adding to 131222332133 its reverse (331233222131), we get a palindrome (462455554264).

The spelling of 131222332133 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirty-two thousand, one hundred thirty-three".