131042222442 has 64 divisors (see below), whose sum is σ = 308407824000. Its totient is φ = 41101528320.

The previous prime is 131042222393. The next prime is 131042222449. The reversal of 131042222442 is 244222240131.

It is a happy number.

131042222442 is a `hidden beast` number, since 1 + 3 + 10 + 422 + 224 + 4 + 2 = 666.

It is a super-3 number, since 3×131042222442³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131042222449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4512184 + ... + 4541132.

It is an arithmetic number, because the mean of its divisors is an integer number (4818872250).

Almost surely, 2^131042222442 is an apocalyptic number.

131042222442 is an abundant number, since it is smaller than the sum of its proper divisors (177365601558).

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

131042222442 is a wasteful number, since it uses less digits than its factorization.

131042222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33908 (or 33902 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 131042222442 its reverse (244222240131), we get a palindrome (375264462573).

The spelling of 131042222442 in words is "one hundred thirty-one billion, forty-two million, two hundred twenty-two thousand, four hundred forty-two".