20113133123 has 8 divisors (see below), whose sum is σ = 20172494640. Its totient is φ = 20053827360.

The previous prime is 20113133119. The next prime is 20113133137. The reversal of 20113133123 is 32133131102.

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 20113133123 - 2² = 20113133119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113133095 and 20113133104.

It is not an unprimeable number, because it can be changed into a prime (20113133323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773213 + ... + 798801.

It is an arithmetic number, because the mean of its divisors is an integer number (2521561830).

Almost surely, 2^20113133123 is an apocalyptic number.

20113133123 is a deficient number, since it is larger than the sum of its proper divisors (59361517).

20113133123 is a wasteful number, since it uses less digits than its factorization.

20113133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27877.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20113133123 its reverse (32133131102), we get a palindrome (52246264225).

The spelling of 20113133123 in words is "twenty billion, one hundred thirteen million, one hundred thirty-three thousand, one hundred twenty-three".