121102312 has 32 divisors (see below), whose sum is σ = 230993280. Its totient is φ = 59512320.

The previous prime is 121102307. The next prime is 121102321. The reversal of 121102312 is 213201121.

It is a junction number, because it is equal to n+sod(n) for n = 121102292 and 121102301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179608 + ... + 180280.

It is an arithmetic number, because the mean of its divisors is an integer number (7218540).

Almost surely, 2^121102312 is an apocalyptic number.

It is an amenable number.

121102312 is a deficient number, since it is larger than the sum of its proper divisors (109890968).

121102312 is a wasteful number, since it uses less digits than its factorization.

121102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121102312 is about 11004.6495627984. The cubic root of 121102312 is about 494.7481111393.

Adding to 121102312 its reverse (213201121), we get a palindrome (334303433).

The spelling of 121102312 in words is "one hundred twenty-one million, one hundred two thousand, three hundred twelve".