131522442423 has 16 divisors (see below), whose sum is σ = 181315516416. Its totient is φ = 84714729120.

The previous prime is 131522442419. The next prime is 131522442431. The reversal of 131522442423 is 324244225131.

It is a happy number.

It is not a de Polignac number, because 131522442423 - 2² = 131522442419 is a prime.

It is a super-2 number, since 2×131522442423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131522446423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096515 + ... + 1210532.

It is an arithmetic number, because the mean of its divisors is an integer number (11332219776).

Almost surely, 2^131522442423 is an apocalyptic number.

131522442423 is a deficient number, since it is larger than the sum of its proper divisors (49793073993).

131522442423 is a wasteful number, since it uses less digits than its factorization.

131522442423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307694.

The product of its digits is 46080, while the sum is 33.

Adding to 131522442423 its reverse (324244225131), we get a palindrome (455766667554).

The spelling of 131522442423 in words is "one hundred thirty-one billion, five hundred twenty-two million, four hundred forty-two thousand, four hundred twenty-three".