131102231025042 has 12 divisors (see below), whose sum is σ = 284054833887630. Its totient is φ = 43700743675008.

The previous prime is 131102231025041. The next prime is 131102231025071. The reversal of 131102231025042 is 240520132201131.

It is a happy number.

131102231025042 is a `hidden beast` number, since 1 + 31 + 1 + 0 + 2 + 23 + 102 + 504 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131041799127801 + 60431897241 = 11447349^2 + 245829^2 .

It is a super-2 number, since 2×131102231025042² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131102231024997 and 131102231025015.

It is not an unprimeable number, because it can be changed into a prime (131102231025041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3641728639567 + ... + 3641728639602.

Almost surely, 2^{131102231025042} is an apocalyptic number.

131102231025042 is an abundant number, since it is smaller than the sum of its proper divisors (152952602862588).

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

131102231025042 is a wasteful number, since it uses less digits than its factorization.

131102231025042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283457279177 (or 7283457279174 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 131102231025042 its reverse (240520132201131), we get a palindrome (371622363226173).

The spelling of 131102231025042 in words is "one hundred thirty-one trillion, one hundred two billion, two hundred thirty-one million, twenty-five thousand, forty-two".