131331023 has 2 divisors, whose sum is σ = 131331024. Its totient is φ = 131331022.

The previous prime is 131331017. The next prime is 131331029. The reversal of 131331023 is 320133131.

It is a balanced prime because it is at equal distance from previous prime (131331017) and next prime (131331029).

It is an emirp because it is prime and its reverse (320133131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131331023 - 2¹⁰ = 131329999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131330992 and 131331010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131331029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665511 + 65665512.

It is an arithmetic number, because the mean of its divisors is an integer number (65665512).

Almost surely, 2^131331023 is an apocalyptic number.

131331023 is a deficient number, since it is larger than the sum of its proper divisors (1).

131331023 is an equidigital number, since it uses as much as digits as its factorization.

131331023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 131331023 is about 11459.9748254523. The cubic root of 131331023 is about 508.3027302070.

Adding to 131331023 its reverse (320133131), we get a palindrome (451464154).

The spelling of 131331023 in words is "one hundred thirty-one million, three hundred thirty-one thousand, twenty-three".