121320313112 has 64 divisors (see below), whose sum is σ = 234718310400. Its totient is φ = 58765875840.

The previous prime is 121320313109. The next prime is 121320313123. The reversal of 121320313112 is 211313023121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8607623 + ... + 8621705.

It is an arithmetic number, because the mean of its divisors is an integer number (3667473600).

Almost surely, 2^121320313112 is an apocalyptic number.

It is an amenable number.

121320313112 is a deficient number, since it is larger than the sum of its proper divisors (113397997288).

121320313112 is a wasteful number, since it uses less digits than its factorization.

121320313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14416 (or 14412 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121320313112 its reverse (211313023121), we get a palindrome (332633336233).

The spelling of 121320313112 in words is "one hundred twenty-one billion, three hundred twenty million, three hundred thirteen thousand, one hundred twelve".