121430616 has 32 divisors (see below), whose sum is σ = 316776960. Its totient is φ = 38716832.

The previous prime is 121430611. The next prime is 121430641. The reversal of 121430616 is 616034121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121430611) 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, 109440 + ... + 110543.

It is an arithmetic number, because the mean of its divisors is an integer number (9899280).

Almost surely, 2^121430616 is an apocalyptic number.

It is an amenable number.

121430616 is an abundant number, since it is smaller than the sum of its proper divisors (195346344).

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

121430616 is a wasteful number, since it uses less digits than its factorization.

121430616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220015 (or 220011 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 121430616 is about 11019.5560709132. The cubic root of 121430616 is about 495.1947891678.

Adding to 121430616 its reverse (616034121), we get a palindrome (737464737).

The spelling of 121430616 in words is "one hundred twenty-one million, four hundred thirty thousand, six hundred sixteen".