121320113120 has 48 divisors (see below), whose sum is σ = 287430852240. Its totient is φ = 48390549504.

The previous prime is 121320113111. The next prime is 121320113137. The reversal of 121320113120 is 21311023121.

It is a super-2 number, since 2×121320113120² (a number of 23 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017530 + ... + 1130489.

It is an arithmetic number, because the mean of its divisors is an integer number (5988142755).

Almost surely, 2^121320113120 is an apocalyptic number.

121320113120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121320113120 is an abundant number, since it is smaller than the sum of its proper divisors (166110739120).

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

121320113120 is a wasteful number, since it uses less digits than its factorization.

121320113120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148387 (or 2148379 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121320113120 its reverse (21311023121), we get a palindrome (142631136241).

The spelling of 121320113120 in words is "one hundred twenty-one billion, three hundred twenty million, one hundred thirteen thousand, one hundred twenty".