131023323 has 12 divisors (see below), whose sum is σ = 189556848. Its totient is φ = 87210000.

The previous prime is 131023309. The next prime is 131023339. The reversal of 131023323 is 323320131.

It is not a de Polignac number, because 131023323 - 2¹⁶ = 130957787 is a prime.

It is a super-2 number, since 2×131023323² = 34334222339924658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131023296 and 131023305.

It is not an unprimeable number, because it can be changed into a prime (131023223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5428 + ... + 17073.

It is an arithmetic number, because the mean of its divisors is an integer number (15796404).

Almost surely, 2^131023323 is an apocalyptic number.

131023323 is a deficient number, since it is larger than the sum of its proper divisors (58533525).

131023323 is a wasteful number, since it uses less digits than its factorization.

131023323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23154 (or 23151 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 131023323 is about 11446.5419668999. The cubic root of 131023323 is about 507.9054464212.

Adding to 131023323 its reverse (323320131), we get a palindrome (454343454).

The spelling of 131023323 in words is "one hundred thirty-one million, twenty-three thousand, three hundred twenty-three".