121600430 has 32 divisors (see below), whose sum is σ = 252379584. Its totient is φ = 41319936.

The previous prime is 121600411. The next prime is 121600447. The reversal of 121600430 is 34006121.

It is a junction number, because it is equal to n+sod(n) for n = 121600399 and 121600408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224 + ... + 15596.

It is an arithmetic number, because the mean of its divisors is an integer number (7886862).

Almost surely, 2^121600430 is an apocalyptic number.

121600430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121600430 is an abundant number, since it is smaller than the sum of its proper divisors (130779154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121600430 is a wasteful number, since it uses less digits than its factorization.

121600430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15500.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121600430 is about 11027.2584988292. The cubic root of 121600430 is about 495.4255158227.

Adding to 121600430 its reverse (34006121), we get a palindrome (155606551).

The spelling of 121600430 in words is "one hundred twenty-one million, six hundred thousand, four hundred thirty".