131212240432342 has 16 divisors (see below), whose sum is σ = 196850395975680. Its totient is φ = 65595442503528.

The previous prime is 131212240432337. The next prime is 131212240432393. The reversal of 131212240432342 is 243234042212131.

It is a super-4 number, since 4×131212240432342⁴ (a number of 58 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131212240432298 and 131212240432307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393345259 + ... + 393678697.

It is an arithmetic number, because the mean of its divisors is an integer number (12303149748480).

Almost surely, 2^{131212240432342} is an apocalyptic number.

131212240432342 is a deficient number, since it is larger than the sum of its proper divisors (65638155543338).

131212240432342 is a wasteful number, since it uses less digits than its factorization.

131212240432342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364875.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 131212240432342 its reverse (243234042212131), we get a palindrome (374446282644473).

The spelling of 131212240432342 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred forty million, four hundred thirty-two thousand, three hundred forty-two".