31300320131112 has 32 divisors (see below), whose sum is σ = 78265103489280. Its totient is φ = 10431532955520.

The previous prime is 31300320131111. The next prime is 31300320131167. The reversal of 31300320131112 is 21113102300313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31300320131111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119058973 + ... + 119321580.

It is an arithmetic number, because the mean of its divisors is an integer number (2445784484040).

Almost surely, 2^{31300320131112} is an apocalyptic number.

It is an amenable number.

31300320131112 is an abundant number, since it is smaller than the sum of its proper divisors (46964783358168).

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

31300320131112 is a wasteful number, since it uses less digits than its factorization.

31300320131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238386033 (or 238386029 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31300320131112 its reverse (21113102300313), we get a palindrome (52413422431425).

The spelling of 31300320131112 in words is "thirty-one trillion, three hundred billion, three hundred twenty million, one hundred thirty-one thousand, one hundred twelve".