20133111010223 has 4 divisors (see below), whose sum is σ = 20153064540480. Its totient is φ = 20113157479968.

The previous prime is 20133111010193. The next prime is 20133111010253. The reversal of 20133111010223 is 32201011133102.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (20133111010193) and next prime (20133111010253).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20133111010223 is a prime.

It is a super-2 number, since 2×20133111010223² (a number of 27 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 = 20133111010195 and 20133111010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133111010253) 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, 9976763615 + ... + 9976765632.

It is an arithmetic number, because the mean of its divisors is an integer number (5038266135120).

Almost surely, 2^{20133111010223} is an apocalyptic number.

20133111010223 is a deficient number, since it is larger than the sum of its proper divisors (19953530257).

20133111010223 is a wasteful number, since it uses less digits than its factorization.

20133111010223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19953530256.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20133111010223 its reverse (32201011133102), we get a palindrome (52334122143325).

The spelling of 20133111010223 in words is "twenty trillion, one hundred thirty-three billion, one hundred eleven million, ten thousand, two hundred twenty-three".