20023031435 has 16 divisors (see below), whose sum is σ = 26218321920. Its totient is φ = 14558675040.

The previous prime is 20023031419. The next prime is 20023031447. The reversal of 20023031435 is 53413032002.

It is not a de Polignac number, because 20023031435 - 2⁴ = 20023031419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20023031435.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196694 + ... + 280596.

It is an arithmetic number, because the mean of its divisors is an integer number (1638645120).

Almost surely, 2^20023031435 is an apocalyptic number.

20023031435 is a deficient number, since it is larger than the sum of its proper divisors (6195290485).

20023031435 is a wasteful number, since it uses less digits than its factorization.

20023031435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88258.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20023031435 its reverse (53413032002), we get a palindrome (73436063437).

The spelling of 20023031435 in words is "twenty billion, twenty-three million, thirty-one thousand, four hundred thirty-five".