131223022 has 8 divisors (see below), whose sum is σ = 224953776. Its totient is φ = 56238432.

The previous prime is 131223019. The next prime is 131223047. The reversal of 131223022 is 220322131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131222987 and 131223005.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4686523 + ... + 4686550.

It is an arithmetic number, because the mean of its divisors is an integer number (28119222).

Almost surely, 2^131223022 is an apocalyptic number.

131223022 is a deficient number, since it is larger than the sum of its proper divisors (93730754).

131223022 is an equidigital number, since it uses as much as digits as its factorization.

131223022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373082.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 131223022 is about 11455.2617604313. The cubic root of 131223022 is about 508.1633565410.

Adding to 131223022 its reverse (220322131), we get a palindrome (351545153).

The spelling of 131223022 in words is "one hundred thirty-one million, two hundred twenty-three thousand, twenty-two".