131222313301 has 4 divisors (see below), whose sum is σ = 131223081772. Its totient is φ = 131221544832.

The previous prime is 131222313293. The next prime is 131222313323. The reversal of 131222313301 is 103313222131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 121455735025 + 9766578276 = 348505^2 + 98826^2 .

It is a cyclic number.

It is not a de Polignac number, because 131222313301 - 2³ = 131222313293 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 (131222313331) 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, 60 + ... + 512293.

It is an arithmetic number, because the mean of its divisors is an integer number (32805770443).

Almost surely, 2^131222313301 is an apocalyptic number.

It is an amenable number.

131222313301 is a deficient number, since it is larger than the sum of its proper divisors (768471).

131222313301 is an equidigital number, since it uses as much as digits as its factorization.

131222313301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768470.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131222313301 its reverse (103313222131), we get a palindrome (234535535432).

The spelling of 131222313301 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirteen thousand, three hundred one".