20133132101 has 4 divisors (see below), whose sum is σ = 20513002572. Its totient is φ = 19753261632.

The previous prime is 20133132031. The next prime is 20133132139. The reversal of 20133132101 is 10123133102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10123133102 = 2 ⋅5061566551.

It can be written as a sum of positive squares in 2 ways, for example, as 11583355876 + 8549776225 = 107626^2 + 92465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133132101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20133132101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133132191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189935156 + ... + 189935261.

It is an arithmetic number, because the mean of its divisors is an integer number (5128250643).

Almost surely, 2^20133132101 is an apocalyptic number.

It is an amenable number.

20133132101 is a deficient number, since it is larger than the sum of its proper divisors (379870471).

20133132101 is an equidigital number, since it uses as much as digits as its factorization.

20133132101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379870470.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20133132101 its reverse (10123133102), we get a palindrome (30256265203).

The spelling of 20133132101 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-two thousand, one hundred one".