20213332134 has 16 divisors (see below), whose sum is σ = 42554383680. Its totient is φ = 6383157480.

The previous prime is 20213332133. The next prime is 20213332151. The reversal of 20213332134 is 43123331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213332133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88654852 + ... + 88655079.

It is an arithmetic number, because the mean of its divisors is an integer number (2659648980).

Almost surely, 2^20213332134 is an apocalyptic number.

20213332134 is an abundant number, since it is smaller than the sum of its proper divisors (22341051546).

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

20213332134 is a wasteful number, since it uses less digits than its factorization.

20213332134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177309955.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20213332134 its reverse (43123331202), we get a palindrome (63336663336).

The spelling of 20213332134 in words is "twenty billion, two hundred thirteen million, three hundred thirty-two thousand, one hundred thirty-four".