20201434023 has 16 divisors (see below), whose sum is σ = 27663199200. Its totient is φ = 13105336320.

The previous prime is 20201433961. The next prime is 20201434039. The reversal of 20201434023 is 32043410202.

It is not a de Polignac number, because 20201434023 - 2¹⁷ = 20201302951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201434063) 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, 163258 + ... + 258951.

It is an arithmetic number, because the mean of its divisors is an integer number (1728949950).

Almost surely, 2^20201434023 is an apocalyptic number.

20201434023 is a deficient number, since it is larger than the sum of its proper divisors (7461765177).

20201434023 is a wasteful number, since it uses less digits than its factorization.

20201434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422642.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20201434023 its reverse (32043410202), we get a palindrome (52244844225).

The spelling of 20201434023 in words is "twenty billion, two hundred one million, four hundred thirty-four thousand, twenty-three".