131213023422 has 32 divisors (see below), whose sum is σ = 283089346848. Its totient is φ = 40305140736.

The previous prime is 131213023393. The next prime is 131213023427. The reversal of 131213023422 is 224320312131.

It is a junction number, because it is equal to n+sod(n) for n = 131213023392 and 131213023401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131213023427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1372143 + ... + 1464650.

It is an arithmetic number, because the mean of its divisors is an integer number (8846542089).

Almost surely, 2^131213023422 is an apocalyptic number.

131213023422 is an abundant number, since it is smaller than the sum of its proper divisors (151876323426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131213023422 is a wasteful number, since it uses less digits than its factorization.

131213023422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837404.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131213023422 its reverse (224320312131), we get a palindrome (355533335553).

The spelling of 131213023422 in words is "one hundred thirty-one billion, two hundred thirteen million, twenty-three thousand, four hundred twenty-two".