121200313130 has 32 divisors (see below), whose sum is σ = 236735630208. Its totient is φ = 44409268800.

The previous prime is 121200313123. The next prime is 121200313271. The reversal of 121200313130 is 31313002121.

It is a junction number, because it is equal to n+sod(n) for n = 121200313099 and 121200313108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3541406 + ... + 3575465.

It is an arithmetic number, because the mean of its divisors is an integer number (7397988444).

Almost surely, 2^121200313130 is an apocalyptic number.

121200313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200313130 is a deficient number, since it is larger than the sum of its proper divisors (115535317078).

121200313130 is a wasteful number, since it uses less digits than its factorization.

121200313130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117022.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121200313130 its reverse (31313002121), we get a palindrome (152513315251).

The spelling of 121200313130 in words is "one hundred twenty-one billion, two hundred million, three hundred thirteen thousand, one hundred thirty".