131221433141134 has 16 divisors (see below), whose sum is σ = 226941745308768. Its totient is φ = 55740077793792.

The previous prime is 131221433141063. The next prime is 131221433141173. The reversal of 131221433141134 is 431141334122131.

It is a super-2 number, since 2×131221433141134² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131221433141134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41473270587 + ... + 41473273750.

It is an arithmetic number, because the mean of its divisors is an integer number (14183859081798).

Almost surely, 2^{131221433141134} is an apocalyptic number.

131221433141134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131221433141134 is a deficient number, since it is larger than the sum of its proper divisors (95720312167634).

131221433141134 is a wasteful number, since it uses less digits than its factorization.

131221433141134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82946544459.

The product of its digits is 20736, while the sum is 34.

Adding to 131221433141134 its reverse (431141334122131), we get a palindrome (562362767263265).

The spelling of 131221433141134 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, four hundred thirty-three million, one hundred forty-one thousand, one hundred thirty-four".