121353020 has 12 divisors (see below), whose sum is σ = 254841384. Its totient is φ = 48541200.

The previous prime is 121353017. The next prime is 121353041. The reversal of 121353020 is 20353121.

It is a self number, because there is not a number n which added to its sum of digits gives 121353020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033806 + ... + 3033845.

It is an arithmetic number, because the mean of its divisors is an integer number (21236782).

Almost surely, 2^121353020 is an apocalyptic number.

121353020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121353020 is an abundant number, since it is smaller than the sum of its proper divisors (133488364).

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

121353020 is a wasteful number, since it uses less digits than its factorization.

121353020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067660 (or 6067658 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 121353020 is about 11016.0346767791. The cubic root of 121353020 is about 495.0892877059.

The spelling of 121353020 in words is "one hundred twenty-one million, three hundred fifty-three thousand, twenty".