131022000224231 has 4 divisors (see below), whose sum is σ = 131220819648600. Its totient is φ = 130823180799864.

The previous prime is 131022000224183. The next prime is 131022000224249. The reversal of 131022000224231 is 132422000220131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131022000224231 is a prime.

It is a super-2 number, since 2×131022000224231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131022000224197 and 131022000224206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022000224261) 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, 99409711196 + ... + 99409712513.

It is an arithmetic number, because the mean of its divisors is an integer number (32805204912150).

Almost surely, 2^{131022000224231} is an apocalyptic number.

131022000224231 is a deficient number, since it is larger than the sum of its proper divisors (198819424369).

131022000224231 is an equidigital number, since it uses as much as digits as its factorization.

131022000224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198819424368.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 131022000224231 its reverse (132422000220131), we get a palindrome (263444000444362).

The spelling of 131022000224231 in words is "one hundred thirty-one trillion, twenty-two billion, two hundred twenty-four thousand, two hundred thirty-one".