131021232202231 has 8 divisors (see below), whose sum is σ = 149957787625344. Its totient is φ = 112139485913400.

The previous prime is 131021232202229. The next prime is 131021232202283. The reversal of 131021232202231 is 132202232120131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131021232202231 - 2¹ = 131021232202229 is a prime.

It is a super-2 number, since 2×131021232202231² (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 = 131021232202196 and 131021232202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021232202291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13702278445 + ... + 13702288006.

It is an arithmetic number, because the mean of its divisors is an integer number (18744723453168).

Almost surely, 2^{131021232202231} is an apocalyptic number.

131021232202231 is a deficient number, since it is larger than the sum of its proper divisors (18936555423113).

131021232202231 is an equidigital number, since it uses as much as digits as its factorization.

131021232202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27404567141.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131021232202231 its reverse (132202232120131), we get a palindrome (263223464322362).

The spelling of 131021232202231 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred thirty-two million, two hundred two thousand, two hundred thirty-one".