31420304340112 has 20 divisors (see below), whose sum is σ = 61084610451900. Its totient is φ = 15656533900928.

The previous prime is 31420304340101. The next prime is 31420304340127. The reversal of 31420304340112 is 21104340302413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13641971798016 + 17778332542096 = 3693504^2 + 4216436^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351136987 + ... + 3351146362.

It is an arithmetic number, because the mean of its divisors is an integer number (3054230522595).

Almost surely, 2^{31420304340112} is an apocalyptic number.

It is an amenable number.

31420304340112 is a deficient number, since it is larger than the sum of its proper divisors (29664306111788).

31420304340112 is a wasteful number, since it uses less digits than its factorization.

31420304340112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702283650 (or 6702283644 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31420304340112 its reverse (21104340302413), we get a palindrome (52524644642525).

The spelling of 31420304340112 in words is "thirty-one trillion, four hundred twenty billion, three hundred four million, three hundred forty thousand, one hundred twelve".