20101133133 has 24 divisors (see below), whose sum is σ = 29311176960. Its totient is φ = 13273852320.

The previous prime is 20101133113. The next prime is 20101133161. The reversal of 20101133133 is 33133110102.

It is a happy number.

It is not a de Polignac number, because 20101133133 - 2¹⁰ = 20101132109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101133113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398128 + ... + 445766.

It is an arithmetic number, because the mean of its divisors is an integer number (1221299040).

Almost surely, 2^20101133133 is an apocalyptic number.

It is an amenable number.

20101133133 is a deficient number, since it is larger than the sum of its proper divisors (9210043827).

20101133133 is a wasteful number, since it uses less digits than its factorization.

20101133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48089 (or 48086 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20101133133 its reverse (33133110102), we get a palindrome (53234243235).

The spelling of 20101133133 in words is "twenty billion, one hundred one million, one hundred thirty-three thousand, one hundred thirty-three".