20110100100133 has 8 divisors (see below), whose sum is σ = 20319963404888. Its totient is φ = 19900288687104.

The previous prime is 20110100100067. The next prime is 20110100100157. The reversal of 20110100100133 is 33100100101102.

It can be written as a sum of positive squares in 4 ways, for example, as 40569210724 + 20069530889409 = 201418^2 + 4479903^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110100100133 is a prime.

It is a super-2 number, since 2×20110100100133² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110100106133) 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, 12193566 + ... + 13744207.

It is an arithmetic number, because the mean of its divisors is an integer number (2539995425611).

Almost surely, 2^{20110100100133} is an apocalyptic number.

It is an amenable number.

20110100100133 is a deficient number, since it is larger than the sum of its proper divisors (209863304755).

20110100100133 is an equidigital number, since it uses as much as digits as its factorization.

20110100100133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25945863.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 20110100100133 its reverse (33100100101102), we get a palindrome (53210200201235).

The spelling of 20110100100133 in words is "twenty trillion, one hundred ten billion, one hundred million, one hundred thousand, one hundred thirty-three".