121112347 has 4 divisors (see below), whose sum is σ = 121208320. Its totient is φ = 121016376.

The previous prime is 121112333. The next prime is 121112351. The reversal of 121112347 is 743211121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743211121 = 23 ⋅32313527.

It is a cyclic number.

It is not a de Polignac number, because 121112347 - 2¹⁵ = 121079579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46068 + ... + 48625.

It is an arithmetic number, because the mean of its divisors is an integer number (30302080).

Almost surely, 2^121112347 is an apocalyptic number.

121112347 is a deficient number, since it is larger than the sum of its proper divisors (95973).

121112347 is an equidigital number, since it uses as much as digits as its factorization.

121112347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95972.

The product of its digits is 336, while the sum is 22.

The square root of 121112347 is about 11005.1054969955. The cubic root of 121112347 is about 494.7617763344.

Adding to 121112347 its reverse (743211121), we get a palindrome (864323468).

The spelling of 121112347 in words is "one hundred twenty-one million, one hundred twelve thousand, three hundred forty-seven".