31301322112 has 32 divisors (see below), whose sum is σ = 62557409880. Its totient is φ = 15600638976.

The previous prime is 31301322103. The next prime is 31301322179. The reversal of 31301322112 is 21122310313.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 31301322112.

It is a congruent number.

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, 350578 + ... + 430705.

Almost surely, 2^31301322112 is an apocalyptic number.

31301322112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31301322112 is a deficient number, since it is larger than the sum of its proper divisors (31256087768).

31301322112 is an equidigital number, since it uses as much as digits as its factorization.

31301322112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781610 (or 781598 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31301322112 its reverse (21122310313), we get a palindrome (52423632425).

The spelling of 31301322112 in words is "thirty-one billion, three hundred one million, three hundred twenty-two thousand, one hundred twelve".