121021320020130 has 48 divisors (see below), whose sum is σ = 314655974750520. Its totient is φ = 32272296344064.

The previous prime is 121021320020071. The next prime is 121021320020141. The reversal of 121021320020130 is 31020023120121.

121021320020130 is a `hidden beast` number, since 1 + 21 + 0 + 213 + 200 + 201 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 83989141664481 + 37032178355649 = 9164559^2 + 6085407^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 103419384 + ... + 104583036.

Almost surely, 2^{121021320020130} is an apocalyptic number.

121021320020130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021320020130 is an abundant number, since it is smaller than the sum of its proper divisors (193634654730390).

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

121021320020130 is a wasteful number, since it uses less digits than its factorization.

121021320020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319235 (or 2319232 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121021320020130 its reverse (31020023120121), we get a palindrome (152041343140251).

The spelling of 121021320020130 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred twenty million, twenty thousand, one hundred thirty".