131011023 has 32 divisors (see below), whose sum is σ = 216034560. Its totient is φ = 69431040.

The previous prime is 131011021. The next prime is 131011033. The reversal of 131011023 is 320110131.

It is not a de Polignac number, because 131011023 - 2¹ = 131011021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011021) 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 31 ways as a sum of consecutive naturals, for example, 115 + ... + 16187.

It is an arithmetic number, because the mean of its divisors is an integer number (6751080).

Almost surely, 2^131011023 is an apocalyptic number.

131011023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131011023 is a deficient number, since it is larger than the sum of its proper divisors (85023537).

131011023 is a wasteful number, since it uses less digits than its factorization.

131011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131011023 is about 11446.0046741210. The cubic root of 131011023 is about 507.8895524761.

Adding to 131011023 its reverse (320110131), we get a palindrome (451121154).

The spelling of 131011023 in words is "one hundred thirty-one million, eleven thousand, twenty-three".