31222342134042 has 64 divisors (see below), whose sum is σ = 66286325064960. Its totient is φ = 9770304900096.

The previous prime is 31222342134019. The next prime is 31222342134043. The reversal of 31222342134042 is 24043124322213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31222342133994 and 31222342134012.

It is not an unprimeable number, because it can be changed into a prime (31222342134043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169930248 + ... + 170113884.

It is an arithmetic number, because the mean of its divisors is an integer number (1035723829140).

Almost surely, 2^{31222342134042} is an apocalyptic number.

31222342134042 is an abundant number, since it is smaller than the sum of its proper divisors (35063982930918).

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

31222342134042 is a wasteful number, since it uses less digits than its factorization.

31222342134042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187895.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 31222342134042 its reverse (24043124322213), we get a palindrome (55265466456255).

The spelling of 31222342134042 in words is "thirty-one trillion, two hundred twenty-two billion, three hundred forty-two million, one hundred thirty-four thousand, forty-two".