121304646403120 has 40 divisors (see below), whose sum is σ = 282607708890960. Its totient is φ = 48423036023040.

The previous prime is 121304646403063. The next prime is 121304646403189. The reversal of 121304646403120 is 21304646403121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121304646403120.

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, 1544062635 + ... + 1544141194.

It is an arithmetic number, because the mean of its divisors is an integer number (7065192722274).

Almost surely, 2^{121304646403120} is an apocalyptic number.

121304646403120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121304646403120 is an abundant number, since it is smaller than the sum of its proper divisors (161303062487840).

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

121304646403120 is a wasteful number, since it uses less digits than its factorization.

121304646403120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088204333 (or 3088204327 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

Subtracting from 121304646403120 its reverse (21304646403121), we obtain a palindrome (99999999999999).

The spelling of 121304646403120 in words is "one hundred twenty-one trillion, three hundred four billion, six hundred forty-six million, four hundred three thousand, one hundred twenty".