131022221133 has 8 divisors (see below), whose sum is σ = 174722762368. Its totient is φ = 87334913664.

The previous prime is 131022221129. The next prime is 131022221147. The reversal of 131022221133 is 331122220131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131022221133 - 2² = 131022221129 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 (131022221123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3285316 + ... + 3324957.

It is an arithmetic number, because the mean of its divisors is an integer number (21840345296).

Almost surely, 2^131022221133 is an apocalyptic number.

It is an amenable number.

131022221133 is a deficient number, since it is larger than the sum of its proper divisors (43700541235).

131022221133 is an equidigital number, since it uses as much as digits as its factorization.

131022221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616883.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131022221133 its reverse (331122220131), we get a palindrome (462144441264).

The spelling of 131022221133 in words is "one hundred thirty-one billion, twenty-two million, two hundred twenty-one thousand, one hundred thirty-three".