121504130 has 32 divisors (see below), whose sum is σ = 239234688. Its totient is φ = 44064000.

The previous prime is 121504127. The next prime is 121504157. The reversal of 121504130 is 31405121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121504099 and 121504108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46355 + ... + 48905.

It is an arithmetic number, because the mean of its divisors is an integer number (7476084).

Almost surely, 2^121504130 is an apocalyptic number.

121504130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121504130 is a deficient number, since it is larger than the sum of its proper divisors (117730558).

121504130 is a wasteful number, since it uses less digits than its factorization.

121504130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121504130 is about 11022.8911815367. The cubic root of 121504130 is about 495.2946991881.

Adding to 121504130 its reverse (31405121), we get a palindrome (152909251).

Subtracting from 121504130 its reverse (31405121), we obtain a palindrome (90099009).

The spelling of 121504130 in words is "one hundred twenty-one million, five hundred four thousand, one hundred thirty".