131022203303443 has 4 divisors (see below), whose sum is σ = 134069231287288. Its totient is φ = 127975175319600.

The previous prime is 131022203303429. The next prime is 131022203303477. The reversal of 131022203303443 is 344303302220131.

It is a happy number.

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 131022203303443 - 2⁹ = 131022203302931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131022203303423) 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, 1523513991858 + ... + 1523513991943.

It is an arithmetic number, because the mean of its divisors is an integer number (33517307821822).

Almost surely, 2^{131022203303443} is an apocalyptic number.

131022203303443 is a deficient number, since it is larger than the sum of its proper divisors (3047027983845).

131022203303443 is an equidigital number, since it uses as much as digits as its factorization.

131022203303443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047027983844.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 131022203303443 its reverse (344303302220131), we get a palindrome (475325505523574).

The spelling of 131022203303443 in words is "one hundred thirty-one trillion, twenty-two billion, two hundred three million, three hundred three thousand, four hundred forty-three".