20133010123 has 4 divisors (see below), whose sum is σ = 20156613568. Its totient is φ = 20109406680.

The previous prime is 20133010097. The next prime is 20133010151. The reversal of 20133010123 is 32101033102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133010123 is a prime.

It is a super-2 number, since 2×20133010123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20133010097 and 20133010106.

It is not an unprimeable number, because it can be changed into a prime (20133013123) 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, 11800443 + ... + 11802148.

It is an arithmetic number, because the mean of its divisors is an integer number (5039153392).

Almost surely, 2^20133010123 is an apocalyptic number.

20133010123 is a deficient number, since it is larger than the sum of its proper divisors (23603445).

20133010123 is an equidigital number, since it uses as much as digits as its factorization.

20133010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23603444.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20133010123 its reverse (32101033102), we get a palindrome (52234043225).

The spelling of 20133010123 in words is "twenty billion, one hundred thirty-three million, ten thousand, one hundred twenty-three".