20038111 has 8 divisors (see below), whose sum is σ = 20482560. Its totient is φ = 19597272.

The previous prime is 20038091. The next prime is 20038133. The reversal of 20038111 is 11183002.

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 20038111 - 2⁹ = 20037599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12396 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (2560320).

Almost surely, 2^20038111 is an apocalyptic number.

20038111 is a deficient number, since it is larger than the sum of its proper divisors (444449).

20038111 is a wasteful number, since it uses less digits than its factorization.

20038111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 20038111 is about 4476.3948664076. The cubic root of 20038111 is about 271.6140675429.

The spelling of 20038111 in words is "twenty million, thirty-eight thousand, one hundred eleven".