121320110323120 has 40 divisors (see below), whose sum is σ = 284862021436080. Its totient is φ = 48047568441600.

The previous prime is 121320110323109. The next prime is 121320110323169. The reversal of 121320110323120 is 21323011023121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121320110323091 and 121320110323100.

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, 7507424490 + ... + 7507440649.

It is an arithmetic number, because the mean of its divisors is an integer number (7121550535902).

Almost surely, 2^{121320110323120} is an apocalyptic number.

121320110323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121320110323120 is an abundant number, since it is smaller than the sum of its proper divisors (163541911112960).

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

121320110323120 is a wasteful number, since it uses less digits than its factorization.

121320110323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15014865253 (or 15014865247 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121320110323120 its reverse (21323011023121), we get a palindrome (142643121346241).

The spelling of 121320110323120 in words is "one hundred twenty-one trillion, three hundred twenty billion, one hundred ten million, three hundred twenty-three thousand, one hundred twenty".