20133434431023 has 16 divisors (see below), whose sum is σ = 26963381596800. Its totient is φ = 13362890831136.

The previous prime is 20133434430971. The next prime is 20133434431051. The reversal of 20133434431023 is 32013443433102.

It is a happy number.

It is not a de Polignac number, because 20133434431023 - 2⁶ = 20133434430959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133434431063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36854928 + ... + 37397226.

It is an arithmetic number, because the mean of its divisors is an integer number (1685211349800).

Almost surely, 2^{20133434431023} is an apocalyptic number.

20133434431023 is a deficient number, since it is larger than the sum of its proper divisors (6829947165777).

20133434431023 is a wasteful number, since it uses less digits than its factorization.

20133434431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597046.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 20133434431023 its reverse (32013443433102), we get a palindrome (52146877864125).

The spelling of 20133434431023 in words is "twenty trillion, one hundred thirty-three billion, four hundred thirty-four million, four hundred thirty-one thousand, twenty-three".