121143220304 has 20 divisors (see below), whose sum is σ = 234765599040. Its totient is φ = 60558549600.

The previous prime is 121143220283. The next prime is 121143220307. The reversal of 121143220304 is 403022341121.

It is a super-3 number, since 3×121143220304³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121143220304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121143220307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739544 + ... + 888375.

It is an arithmetic number, because the mean of its divisors is an integer number (11738279952).

Almost surely, 2^121143220304 is an apocalyptic number.

It is an amenable number.

121143220304 is a deficient number, since it is larger than the sum of its proper divisors (113622378736).

121143220304 is a wasteful number, since it uses less digits than its factorization.

121143220304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632578 (or 1632572 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121143220304 its reverse (403022341121), we get a palindrome (524165561425).

The spelling of 121143220304 in words is "one hundred twenty-one billion, one hundred forty-three million, two hundred twenty thousand, three hundred four".