121430700720 has 160 divisors (see below), whose sum is σ = 478012976640. Its totient is φ = 27755585280.

The previous prime is 121430700719. The next prime is 121430700751. The reversal of 121430700720 is 27007034121.

It is a happy number.

121430700720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4000446 + ... + 4030685.

It is an arithmetic number, because the mean of its divisors is an integer number (2987581104).

Almost surely, 2^121430700720 is an apocalyptic number.

121430700720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121430700720 is an abundant number, since it is smaller than the sum of its proper divisors (356582275920).

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

121430700720 is a wasteful number, since it uses less digits than its factorization.

121430700720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8031160 (or 8031148 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 121430700720 its reverse (27007034121), we get a palindrome (148437734841).

The spelling of 121430700720 in words is "one hundred twenty-one billion, four hundred thirty million, seven hundred thousand, seven hundred twenty".