131223012023 has 8 divisors (see below), whose sum is σ = 138157162800. Its totient is φ = 124291628928.

The previous prime is 131223012017. The next prime is 131223012031. The reversal of 131223012023 is 320210322131.

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 131223012023 - 2⁴ = 131223012007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131223011986 and 131223012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223012623) 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 7 ways as a sum of consecutive naturals, for example, 594236 + ... + 784577.

It is an arithmetic number, because the mean of its divisors is an integer number (17269645350).

Almost surely, 2^131223012023 is an apocalyptic number.

131223012023 is a deficient number, since it is larger than the sum of its proper divisors (6934150777).

131223012023 is a wasteful number, since it uses less digits than its factorization.

131223012023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383841.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131223012023 its reverse (320210322131), we get a palindrome (451433334154).

The spelling of 131223012023 in words is "one hundred thirty-one billion, two hundred twenty-three million, twelve thousand, twenty-three".