20122434534 has 32 divisors (see below), whose sum is σ = 43129647360. Its totient is φ = 6242445792.

The previous prime is 20122434491. The next prime is 20122434551. The reversal of 20122434534 is 43543422102.

It is a congruent number.

It is an unprimeable number.

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, 1965364 + ... + 1975575.

It is an arithmetic number, because the mean of its divisors is an integer number (1347801480).

Almost surely, 2^20122434534 is an apocalyptic number.

20122434534 is an abundant number, since it is smaller than the sum of its proper divisors (23007212826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122434534 is a wasteful number, since it uses less digits than its factorization.

20122434534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941004.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20122434534 its reverse (43543422102), we get a palindrome (63665856636).

The spelling of 20122434534 in words is "twenty billion, one hundred twenty-two million, four hundred thirty-four thousand, five hundred thirty-four".