121030130320 has 40 divisors (see below), whose sum is σ = 306976423680. Its totient is φ = 44010956160.

The previous prime is 121030130269. The next prime is 121030130323. The reversal of 121030130320 is 23031030121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 121030130294 and 121030130303.

It is not an unprimeable number, because it can be changed into a prime (121030130323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68766240 + ... + 68767999.

It is an arithmetic number, because the mean of its divisors is an integer number (7674410592).

Almost surely, 2^121030130320 is an apocalyptic number.

121030130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121030130320 is an abundant number, since it is smaller than the sum of its proper divisors (185946293360).

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

121030130320 is a wasteful number, since it uses less digits than its factorization.

121030130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137534263 (or 137534257 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 121030130320 its reverse (23031030121), we get a palindrome (144061160441).

The spelling of 121030130320 in words is "one hundred twenty-one billion, thirty million, one hundred thirty thousand, three hundred twenty".