20101368 has 48 divisors (see below), whose sum is σ = 58461480. Its totient is φ = 5742912.

The previous prime is 20101351. The next prime is 20101369. The reversal of 20101368 is 86310102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101369) 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 11 ways as a sum of consecutive naturals, for example, 7371 + ... + 9722.

Almost surely, 2^20101368 is an apocalyptic number.

20101368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20101368 is an abundant number, since it is smaller than the sum of its proper divisors (38360112).

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

20101368 is a wasteful number, since it uses less digits than its factorization.

20101368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17116 (or 17105 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20101368 is about 4483.4549178061. The cubic root of 20101368 is about 271.8995808664.

The spelling of 20101368 in words is "twenty million, one hundred one thousand, three hundred sixty-eight".