121612430 has 16 divisors (see below), whose sum is σ = 221541264. Its totient is φ = 48058560.

The previous prime is 121612397. The next prime is 121612487. The reversal of 121612430 is 34216121.

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, 72431 + ... + 74090.

It is an arithmetic number, because the mean of its divisors is an integer number (13846329).

Almost surely, 2^121612430 is an apocalyptic number.

121612430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121612430 is a deficient number, since it is larger than the sum of its proper divisors (99928834).

121612430 is a wasteful number, since it uses less digits than its factorization.

121612430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146611.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121612430 is about 11027.8025916318. The cubic root of 121612430 is about 495.4418121209.

Adding to 121612430 its reverse (34216121), we get a palindrome (155828551).

The spelling of 121612430 in words is "one hundred twenty-one million, six hundred twelve thousand, four hundred thirty".