131022202331 has 2 divisors, whose sum is σ = 131022202332. Its totient is φ = 131022202330.

The previous prime is 131022202327. The next prime is 131022202361. The reversal of 131022202331 is 133202220131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131022202331 - 2² = 131022202327 is a prime.

It is a super-2 number, since 2×131022202331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131022202361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65511101165 + 65511101166.

It is an arithmetic number, because the mean of its divisors is an integer number (65511101166).

Almost surely, 2^131022202331 is an apocalyptic number.

131022202331 is a deficient number, since it is larger than the sum of its proper divisors (1).

131022202331 is an equidigital number, since it uses as much as digits as its factorization.

131022202331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131022202331 its reverse (133202220131), we get a palindrome (264224422462).

The spelling of 131022202331 in words is "one hundred thirty-one billion, twenty-two million, two hundred two thousand, three hundred thirty-one".