31442430022130 has 16 divisors (see below), whose sum is σ = 56652244121304. Its totient is φ = 12564556435200.

The previous prime is 31442430022127. The next prime is 31442430022193. The reversal of 31442430022130 is 3122003424413.

It can be written as a sum of positive squares in 4 ways, for example, as 7420835222641 + 24021594799489 = 2724121^2 + 4901183^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31442430022093 and 31442430022102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551936071 + ... + 1551956330.

Almost surely, 2^{31442430022130} is an apocalyptic number.

31442430022130 is a deficient number, since it is larger than the sum of its proper divisors (25209814099174).

31442430022130 is a wasteful number, since it uses less digits than its factorization.

31442430022130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103893421.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31442430022130 its reverse (3122003424413), we get a palindrome (34564433446543).

The spelling of 31442430022130 in words is "thirty-one trillion, four hundred forty-two billion, four hundred thirty million, twenty-two thousand, one hundred thirty".