121371630 has 16 divisors (see below), whose sum is σ = 291291984. Its totient is φ = 32365760.

The previous prime is 121371629. The next prime is 121371659. The reversal of 121371630 is 36173121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121371630.

It is a congruent number.

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, 2022831 + ... + 2022890.

It is an arithmetic number, because the mean of its divisors is an integer number (18205749).

Almost surely, 2^121371630 is an apocalyptic number.

121371630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121371630 is an abundant number, since it is smaller than the sum of its proper divisors (169920354).

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

121371630 is a wasteful number, since it uses less digits than its factorization.

121371630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045731.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 121371630 is about 11016.8793222037. The cubic root of 121371630 is about 495.1145944259.

The spelling of 121371630 in words is "one hundred twenty-one million, three hundred seventy-one thousand, six hundred thirty".