131223233422 has 8 divisors (see below), whose sum is σ = 196840324872. Its totient is φ = 65609791800.

The previous prime is 131223233321. The next prime is 131223233467. The reversal of 131223233422 is 224332322131.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820729 + ... + 967492.

It is an arithmetic number, because the mean of its divisors is an integer number (24605040609).

Almost surely, 2^131223233422 is an apocalyptic number.

131223233422 is a deficient number, since it is larger than the sum of its proper divisors (65617091450).

131223233422 is a wasteful number, since it uses less digits than its factorization.

131223233422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824914.

The product of its digits is 10368, while the sum is 28.

Adding to 131223233422 its reverse (224332322131), we get a palindrome (355555555553).

The spelling of 131223233422 in words is "one hundred thirty-one billion, two hundred twenty-three million, two hundred thirty-three thousand, four hundred twenty-two".