121204102430420 has 48 divisors (see below), whose sum is σ = 262741957632000. Its totient is φ = 46917227420160.

The previous prime is 121204102430419. The next prime is 121204102430461. The reversal of 121204102430420 is 24034201402121.

It is a self number, because there is not a number n which added to its sum of digits gives 121204102430420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61525676 + ... + 63465084.

It is an arithmetic number, because the mean of its divisors is an integer number (5473790784000).

Almost surely, 2^{121204102430420} is an apocalyptic number.

121204102430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121204102430420 is an abundant number, since it is smaller than the sum of its proper divisors (141537855201580).

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

121204102430420 is a wasteful number, since it uses less digits than its factorization.

121204102430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040248 (or 2040246 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121204102430420 its reverse (24034201402121), we get a palindrome (145238303832541).

The spelling of 121204102430420 in words is "one hundred twenty-one trillion, two hundred four billion, one hundred two million, four hundred thirty thousand, four hundred twenty".