131222323302 has 24 divisors (see below), whose sum is σ = 305292752856. Its totient is φ = 37492092288.

The previous prime is 131222323283. The next prime is 131222323319. The reversal of 131222323302 is 203323222131.

It is a super-2 number, since 2×131222323302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223166923 + ... + 223167510.

It is an arithmetic number, because the mean of its divisors is an integer number (12720531369).

Almost surely, 2^131222323302 is an apocalyptic number.

131222323302 is an abundant number, since it is smaller than the sum of its proper divisors (174070429554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131222323302 is a wasteful number, since it uses less digits than its factorization.

131222323302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446334452 (or 446334445 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 131222323302 its reverse (203323222131), we get a palindrome (334545545433).

The spelling of 131222323302 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred twenty-three thousand, three hundred two".