20233434123013 has 16 divisors (see below), whose sum is σ = 21240740505600. Its totient is φ = 19248310329840.

The previous prime is 20233434122953. The next prime is 20233434123059. The reversal of 20233434123013 is 31032143433202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20233434123013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233434123313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72220918 + ... + 72500536.

It is an arithmetic number, because the mean of its divisors is an integer number (1327546281600).

Almost surely, 2^{20233434123013} is an apocalyptic number.

It is an amenable number.

20233434123013 is a deficient number, since it is larger than the sum of its proper divisors (1007306382587).

20233434123013 is a wasteful number, since it uses less digits than its factorization.

20233434123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319272.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 20233434123013 its reverse (31032143433202), we get a palindrome (51265577556215).

The spelling of 20233434123013 in words is "twenty trillion, two hundred thirty-three billion, four hundred thirty-four million, one hundred twenty-three thousand, thirteen".