121320412 has 12 divisors (see below), whose sum is σ = 212817976. Its totient is φ = 60515280.

The previous prime is 121320403. The next prime is 121320481. The reversal of 121320412 is 214023121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34338 + ... + 37705.

Almost surely, 2^121320412 is an apocalyptic number.

It is an amenable number.

121320412 is a deficient number, since it is larger than the sum of its proper divisors (91497564).

121320412 is a wasteful number, since it uses less digits than its factorization.

121320412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72468 (or 72466 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121320412 is about 11014.5545529540. The cubic root of 121320412 is about 495.0449396332.

Adding to 121320412 its reverse (214023121), we get a palindrome (335343533).

The spelling of 121320412 in words is "one hundred twenty-one million, three hundred twenty thousand, four hundred twelve".