121930008 has 32 divisors (see below), whose sum is σ = 305122560. Its totient is φ = 40603680.

The previous prime is 121929989. The next prime is 121930009. The reversal of 121930008 is 800039121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121930008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121930009) 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, 32973 + ... + 36483.

It is an arithmetic number, because the mean of its divisors is an integer number (9535080).

Almost surely, 2^121930008 is an apocalyptic number.

It is an amenable number.

121930008 is an abundant number, since it is smaller than the sum of its proper divisors (183192552).

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

121930008 is a wasteful number, since it uses less digits than its factorization.

121930008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967 (or 4963 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 121930008 is about 11042.1921736583. The cubic root of 121930008 is about 495.8727018965.

Adding to 121930008 its reverse (800039121), we get a palindrome (921969129).

The spelling of 121930008 in words is "one hundred twenty-one million, nine hundred thirty thousand, eight".