121420430 has 16 divisors (see below), whose sum is σ = 218959200. Its totient is φ = 48478752.

The previous prime is 121420391. The next prime is 121420501. The reversal of 121420430 is 34024121.

It is a junction number, because it is equal to n+sod(n) for n = 121420399 and 121420408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5330 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (13684950).

Almost surely, 2^121420430 is an apocalyptic number.

121420430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121420430 is a deficient number, since it is larger than the sum of its proper divisors (97538770).

121420430 is a wasteful number, since it uses less digits than its factorization.

121420430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22363.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121420430 is about 11019.0938828925. The cubic root of 121420430 is about 495.1809425907.

Adding to 121420430 its reverse (34024121), we get a palindrome (155444551).

The spelling of 121420430 in words is "one hundred twenty-one million, four hundred twenty thousand, four hundred thirty".