20121935 has 8 divisors (see below), whose sum is σ = 24202800. Its totient is φ = 16059904.

The previous prime is 20121923. The next prime is 20121947. The reversal of 20121935 is 53912102.

It is an interprime number because it is at equal distance from previous prime (20121923) and next prime (20121947).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20121935 - 2⁴ = 20121919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20121935.

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, 2237 + ... + 6726.

It is an arithmetic number, because the mean of its divisors is an integer number (3025350).

Almost surely, 2^20121935 is an apocalyptic number.

20121935 is a deficient number, since it is larger than the sum of its proper divisors (4080865).

20121935 is an equidigital number, since it uses as much as digits as its factorization.

20121935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9417.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 20121935 is about 4485.7479866796. The cubic root of 20121935 is about 271.9922818960.

The spelling of 20121935 in words is "twenty million, one hundred twenty-one thousand, nine hundred thirty-five".