131142131223442 has 16 divisors (see below), whose sum is σ = 200250825929280. Its totient is φ = 64394117103952.

The previous prime is 131142131223421. The next prime is 131142131223451. The reversal of 131142131223442 is 244322131241131.

It is a super-2 number, since 2×131142131223442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131142131223398 and 131142131223407.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 565181053 + ... + 565413040.

It is an arithmetic number, because the mean of its divisors is an integer number (12515676620580).

Almost surely, 2^{131142131223442} is an apocalyptic number.

131142131223442 is a deficient number, since it is larger than the sum of its proper divisors (69108694705838).

131142131223442 is a wasteful number, since it uses less digits than its factorization.

131142131223442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130595137.

The product of its digits is 27648, while the sum is 34.

Adding to 131142131223442 its reverse (244322131241131), we get a palindrome (375464262464573).

The spelling of 131142131223442 in words is "one hundred thirty-one trillion, one hundred forty-two billion, one hundred thirty-one million, two hundred twenty-three thousand, four hundred forty-two".