131042515426 has 8 divisors (see below), whose sum is σ = 196570791900. Its totient is φ = 65518918128.

The previous prime is 131042515411. The next prime is 131042515447. The reversal of 131042515426 is 624515240131.

It can be written as a sum of positive squares in 2 ways, for example, as 129286989225 + 1755526201 = 359565^2 + 41899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131042515426² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131042515391 and 131042515400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098921 + ... + 1212316.

Almost surely, 2^131042515426 is an apocalyptic number.

131042515426 is a deficient number, since it is larger than the sum of its proper divisors (65528276474).

131042515426 is a wasteful number, since it uses less digits than its factorization.

131042515426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339588.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 131042515426 its reverse (624515240131), we get a palindrome (755557755557).

The spelling of 131042515426 in words is "one hundred thirty-one billion, forty-two million, five hundred fifteen thousand, four hundred twenty-six".