20334021012 has 36 divisors (see below), whose sum is σ = 52653546036. Its totient is φ = 6612689280.

The previous prime is 20334020983. The next prime is 20334021023. The reversal of 20334021012 is 21012043302.

It can be written as a sum of positive squares in 2 ways, for example, as 454712976 + 19879308036 = 21324^2 + 140994^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6886743 + ... + 6889694.

It is an arithmetic number, because the mean of its divisors is an integer number (1462598501).

Almost surely, 2^20334021012 is an apocalyptic number.

It is an amenable number.

20334021012 is an abundant number, since it is smaller than the sum of its proper divisors (32319525024).

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

20334021012 is a wasteful number, since it uses less digits than its factorization.

20334021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776488 (or 13776483 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20334021012 its reverse (21012043302), we get a palindrome (41346064314).

The spelling of 20334021012 in words is "twenty billion, three hundred thirty-four million, twenty-one thousand, twelve".