13131241220042 has 32 divisors (see below), whose sum is σ = 21835153333440. Its totient is φ = 5872391902080.

The previous prime is 13131241220017. The next prime is 13131241220063. The reversal of 13131241220042 is 24002214213131.

It is a happy number.

It is a super-2 number, since 2×13131241220042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13131241219993 and 13131241220020.

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 15 ways as a sum of consecutive naturals, for example, 4313453 + ... + 6698384.

It is an arithmetic number, because the mean of its divisors is an integer number (682348541670).

Almost surely, 2^{13131241220042} is an apocalyptic number.

13131241220042 is a deficient number, since it is larger than the sum of its proper divisors (8703912113398).

13131241220042 is a wasteful number, since it uses less digits than its factorization.

13131241220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012726.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13131241220042 its reverse (24002214213131), we get a palindrome (37133455433173).

The spelling of 13131241220042 in words is "thirteen trillion, one hundred thirty-one billion, two hundred forty-one million, two hundred twenty thousand, forty-two".