131023223330231 has 4 divisors (see below), whose sum is σ = 131023250352264. Its totient is φ = 131023196308200.

The previous prime is 131023223330191. The next prime is 131023223330239. The reversal of 131023223330231 is 132033322320131.

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-131023223330231 is a prime.

It is a super-2 number, since 2×131023223330231² (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 = 131023223330194 and 131023223330203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023223330239) 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, 4011560 + ... + 16677501.

It is an arithmetic number, because the mean of its divisors is an integer number (32755812588066).

Almost surely, 2^{131023223330231} is an apocalyptic number.

131023223330231 is a deficient number, since it is larger than the sum of its proper divisors (27022033).

131023223330231 is an equidigital number, since it uses as much as digits as its factorization.

131023223330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27022032.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 131023223330231 its reverse (132033322320131), we get a palindrome (263056545650362).

The spelling of 131023223330231 in words is "one hundred thirty-one trillion, twenty-three billion, two hundred twenty-three million, three hundred thirty thousand, two hundred thirty-one".