131433424324231 has 4 divisors (see below), whose sum is σ = 132596551973232. Its totient is φ = 130270296675232.

The previous prime is 131433424324229. The next prime is 131433424324247. The reversal of 131433424324231 is 132423424334131.

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 131433424324231 - 2¹ = 131433424324229 is a prime.

It is a super-2 number, since 2×131433424324231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131433424324201) 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, 581563824331 + ... + 581563824556.

It is an arithmetic number, because the mean of its divisors is an integer number (33149137993308).

Almost surely, 2^{131433424324231} is an apocalyptic number.

131433424324231 is a deficient number, since it is larger than the sum of its proper divisors (1163127649001).

131433424324231 is a wasteful number, since it uses less digits than its factorization.

131433424324231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163127649000.

The product of its digits is 497664, while the sum is 40.

Adding to 131433424324231 its reverse (132423424334131), we get a palindrome (263856848658362).

The spelling of 131433424324231 in words is "one hundred thirty-one trillion, four hundred thirty-three billion, four hundred twenty-four million, three hundred twenty-four thousand, two hundred thirty-one".