131221330314043 has 4 divisors (see below), whose sum is σ = 138940232097240. Its totient is φ = 123502428530848.

The previous prime is 131221330314029. The next prime is 131221330314047. The reversal of 131221330314043 is 340413033122131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131221330314043 - 2⁹ = 131221330313531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131221330313996 and 131221330314014.

It is not an unprimeable number, because it can be changed into a prime (131221330314047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3859450891573 + ... + 3859450891606.

It is an arithmetic number, because the mean of its divisors is an integer number (34735058024310).

Almost surely, 2^{131221330314043} is an apocalyptic number.

131221330314043 is a deficient number, since it is larger than the sum of its proper divisors (7718901783197).

131221330314043 is an equidigital number, since it uses as much as digits as its factorization.

131221330314043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718901783196.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 131221330314043 its reverse (340413033122131), we get a palindrome (471634363436174).

The spelling of 131221330314043 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred thirty million, three hundred fourteen thousand, forty-three".