121320123103312 has 20 divisors (see below), whose sum is σ = 268637415443296. Its totient is φ = 51994338472800.

The previous prime is 121320123103307. The next prime is 121320123103331. The reversal of 121320123103312 is 213301321023121.

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, 541607692314 + ... + 541607692537.

Almost surely, 2^{121320123103312} is an apocalyptic number.

It is an amenable number.

121320123103312 is an abundant number, since it is smaller than the sum of its proper divisors (147317292339984).

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

121320123103312 is a wasteful number, since it uses less digits than its factorization.

121320123103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083215384866 (or 1083215384860 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121320123103312 its reverse (213301321023121), we get a palindrome (334621444126433).

The spelling of 121320123103312 in words is "one hundred twenty-one trillion, three hundred twenty billion, one hundred twenty-three million, one hundred three thousand, three hundred twelve".