121301430 has 32 divisors (see below), whose sum is σ = 292274784. Its totient is φ = 32219136.

The previous prime is 121301387. The next prime is 121301449. The reversal of 121301430 is 34103121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 157 + ... + 15576.

It is an arithmetic number, because the mean of its divisors is an integer number (9133587).

Almost surely, 2^121301430 is an apocalyptic number.

121301430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121301430 is an abundant number, since it is smaller than the sum of its proper divisors (170973354).

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

121301430 is a wasteful number, since it uses less digits than its factorization.

121301430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16000.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121301430 is about 11013.6928411864. The cubic root of 121301430 is about 495.0191197594.

Adding to 121301430 its reverse (34103121), we get a palindrome (155404551).

The spelling of 121301430 in words is "one hundred twenty-one million, three hundred one thousand, four hundred thirty".