121302430 has 16 divisors (see below), whose sum is σ = 219479184. Its totient is φ = 48268800.

The previous prime is 121302427. The next prime is 121302431. The reversal of 121302430 is 34203121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302431) 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, 29496 + ... + 33355.

It is an arithmetic number, because the mean of its divisors is an integer number (13717449).

Almost surely, 2^121302430 is an apocalyptic number.

121302430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121302430 is a deficient number, since it is larger than the sum of its proper divisors (98176754).

121302430 is a wasteful number, since it uses less digits than its factorization.

121302430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63051.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 121302430 is about 11013.7382391266. The cubic root of 121302430 is about 495.0204800560.

Adding to 121302430 its reverse (34203121), we get a palindrome (155505551).

The spelling of 121302430 in words is "one hundred twenty-one million, three hundred two thousand, four hundred thirty".