121013120 has 64 divisors (see below), whose sum is σ = 301911840. Its totient is φ = 46295040.

The previous prime is 121013117. The next prime is 121013131. The reversal of 121013120 is 21310121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10610 + ... + 18830.

Almost surely, 2^121013120 is an apocalyptic number.

121013120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150955920).

121013120 is an abundant number, since it is smaller than the sum of its proper divisors (180898720).

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

121013120 is an equidigital number, since it uses as much as digits as its factorization.

121013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8263 (or 8251 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121013120 is about 11000.5963474713. The cubic root of 121013120 is about 494.6266204466.

Adding to 121013120 its reverse (21310121), we get a palindrome (142323241).

The spelling of 121013120 in words is "one hundred twenty-one million, thirteen thousand, one hundred twenty".