121445123 has 8 divisors (see below), whose sum is σ = 122400000. Its totient is φ = 120494088.

The previous prime is 121445119. The next prime is 121445141. The reversal of 121445123 is 321544121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121445123 - 2² = 121445119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121445113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98690 + ... + 99912.

It is an arithmetic number, because the mean of its divisors is an integer number (15300000).

Almost surely, 2^121445123 is an apocalyptic number.

121445123 is a deficient number, since it is larger than the sum of its proper divisors (954877).

121445123 is a wasteful number, since it uses less digits than its factorization.

121445123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921.

The product of its digits is 960, while the sum is 23.

The square root of 121445123 is about 11020.2142901125. The cubic root of 121445123 is about 495.2145082606.

Adding to 121445123 its reverse (321544121), we get a palindrome (442989244).

The spelling of 121445123 in words is "one hundred twenty-one million, four hundred forty-five thousand, one hundred twenty-three".