131000321004443 has 16 divisors (see below), whose sum is σ = 143372430520800. Its totient is φ = 118705410420480.

The previous prime is 131000321004437. The next prime is 131000321004493. The reversal of 131000321004443 is 344400123000131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131000321004443 - 2⁶ = 131000321004379 is a prime.

It is a super-2 number, since 2×131000321004443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131000321004493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77210153 + ... + 78888581.

It is an arithmetic number, because the mean of its divisors is an integer number (8960776907550).

Almost surely, 2^{131000321004443} is an apocalyptic number.

131000321004443 is a deficient number, since it is larger than the sum of its proper divisors (12372109516357).

131000321004443 is a wasteful number, since it uses less digits than its factorization.

131000321004443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701422.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131000321004443 its reverse (344400123000131), we get a palindrome (475400444004574).

The spelling of 131000321004443 in words is "one hundred thirty-one trillion, three hundred twenty-one million, four thousand, four hundred forty-three".