121623434 has 8 divisors (see below), whose sum is σ = 182504640. Its totient is φ = 60788556.

The previous prime is 121623431. The next prime is 121623443. The reversal of 121623434 is 434326121.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121623431) by changing a digit.

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, 4034 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (22813080).

Almost surely, 2^121623434 is an apocalyptic number.

121623434 is a deficient number, since it is larger than the sum of its proper divisors (60881206).

121623434 is a wasteful number, since it uses less digits than its factorization.

121623434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23164.

The product of its digits is 3456, while the sum is 26.

The square root of 121623434 is about 11028.3015011379. The cubic root of 121623434 is about 495.4567548843.

Adding to 121623434 its reverse (434326121), we get a palindrome (555949555).

The spelling of 121623434 in words is "one hundred twenty-one million, six hundred twenty-three thousand, four hundred thirty-four".