121373620 has 24 divisors (see below), whose sum is σ = 259207200. Its totient is φ = 47726112.

The previous prime is 121373617. The next prime is 121373621. The reversal of 121373620 is 26373121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121373621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50250 + ... + 52609.

It is an arithmetic number, because the mean of its divisors is an integer number (10800300).

Almost surely, 2^121373620 is an apocalyptic number.

121373620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121373620 is an abundant number, since it is smaller than the sum of its proper divisors (137833580).

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

121373620 is a wasteful number, since it uses less digits than its factorization.

121373620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102927 (or 102925 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 121373620 is about 11016.9696377906. The cubic root of 121373620 is about 495.1173003649.

The spelling of 121373620 in words is "one hundred twenty-one million, three hundred seventy-three thousand, six hundred twenty".