20000133123 has 8 divisors (see below), whose sum is σ = 28235482128. Its totient is φ = 12549103104.

The previous prime is 20000133121. The next prime is 20000133137. The reversal of 20000133123 is 32133100002.

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

It is not a de Polignac number, because 20000133123 - 2¹ = 20000133121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20000133121) 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, 196079686 + ... + 196079787.

It is an arithmetic number, because the mean of its divisors is an integer number (3529435266).

Almost surely, 2^20000133123 is an apocalyptic number.

20000133123 is a deficient number, since it is larger than the sum of its proper divisors (8235349005).

20000133123 is a wasteful number, since it uses less digits than its factorization.

20000133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392159493.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20000133123 its reverse (32133100002), we get a palindrome (52133233125).

The spelling of 20000133123 in words is "twenty billion, one hundred thirty-three thousand, one hundred twenty-three".