121102443 has 48 divisors (see below), whose sum is σ = 224030976. Its totient is φ = 61197120.

The previous prime is 121102417. The next prime is 121102459. The reversal of 121102443 is 344201121.

121102443 is a `hidden beast` number, since 121 + 102 + 443 = 666.

It is not a de Polignac number, because 121102443 - 2⁵ = 121102411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121102243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23280 + ... + 28002.

It is an arithmetic number, because the mean of its divisors is an integer number (4667312).

Almost surely, 2^121102443 is an apocalyptic number.

121102443 is a deficient number, since it is larger than the sum of its proper divisors (102928533).

121102443 is a wasteful number, since it uses less digits than its factorization.

121102443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784 (or 4781 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121102443 is about 11004.6555148264. The cubic root of 121102443 is about 494.7482895338.

Adding to 121102443 its reverse (344201121), we get a palindrome (465303564).

The spelling of 121102443 in words is "one hundred twenty-one million, one hundred two thousand, four hundred forty-three".