121233113123120 has 40 divisors (see below), whose sum is σ = 281914337848416. Its totient is φ = 48485099040768.

The previous prime is 121233113123063. The next prime is 121233113123153. The reversal of 121233113123120 is 21321311332121.

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 121233113123120.

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, 126805292 + ... + 127757771.

Almost surely, 2^{121233113123120} is an apocalyptic number.

121233113123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121233113123120 is an abundant number, since it is smaller than the sum of its proper divisors (160681224725296).

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

121233113123120 is a wasteful number, since it uses less digits than its factorization.

121233113123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254569029 (or 254569023 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 121233113123120 its reverse (21321311332121), we get a palindrome (142554424455241).

The spelling of 121233113123120 in words is "one hundred twenty-one trillion, two hundred thirty-three billion, one hundred thirteen million, one hundred twenty-three thousand, one hundred twenty".