121320130 has 16 divisors (see below), whose sum is σ = 229870080. Its totient is φ = 45973872.

The previous prime is 121320103. The next prime is 121320163. The reversal of 121320130 is 31023121.

It is a self number, because there is not a number n which added to its sum of digits gives 121320130.

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, 319074 + ... + 319453.

It is an arithmetic number, because the mean of its divisors is an integer number (14366880).

Almost surely, 2^121320130 is an apocalyptic number.

121320130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121320130 is a deficient number, since it is larger than the sum of its proper divisors (108549950).

121320130 is a wasteful number, since it uses less digits than its factorization.

121320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638553.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121320130 is about 11014.5417517026. The cubic root of 121320130 is about 495.0445560682.

Adding to 121320130 its reverse (31023121), we get a palindrome (152343251).

The spelling of 121320130 in words is "one hundred twenty-one million, three hundred twenty thousand, one hundred thirty".