131413522243 has 4 divisors (see below), whose sum is σ = 135945023040. Its totient is φ = 126882021448.

The previous prime is 131413522241. The next prime is 131413522259. The reversal of 131413522243 is 342225314131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342225314131 = 4793 ⋅71401067.

It is a cyclic number.

It is not a de Polignac number, because 131413522243 - 2¹ = 131413522241 is a prime.

It is a super-2 number, since 2×131413522243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131413522241) 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, 2265750355 + ... + 2265750412.

It is an arithmetic number, because the mean of its divisors is an integer number (33986255760).

Almost surely, 2^131413522243 is an apocalyptic number.

131413522243 is a deficient number, since it is larger than the sum of its proper divisors (4531500797).

131413522243 is an equidigital number, since it uses as much as digits as its factorization.

131413522243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531500796.

The product of its digits is 17280, while the sum is 31.

Adding to 131413522243 its reverse (342225314131), we get a palindrome (473638836374).

The spelling of 131413522243 in words is "one hundred thirty-one billion, four hundred thirteen million, five hundred twenty-two thousand, two hundred forty-three".