20130320022012 has 36 divisors (see below), whose sum is σ = 50885273491416. Its totient is φ = 6710067393120.

The previous prime is 20130320021983. The next prime is 20130320022019. The reversal of 20130320022012 is 21022002303102.

20130320022012 is a `hidden beast` number, since 201 + 30 + 3 + 200 + 220 + 12 = 666.

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 not an unprimeable number, because it can be changed into a prime (20130320022019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4962898 + ... + 8055494.

It is an arithmetic number, because the mean of its divisors is an integer number (1413479819206).

Almost surely, 2^{20130320022012} is an apocalyptic number.

It is an amenable number.

20130320022012 is an abundant number, since it is smaller than the sum of its proper divisors (30754953469404).

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

20130320022012 is a wasteful number, since it uses less digits than its factorization.

20130320022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273418 (or 3273413 counting only the distinct ones).

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

Adding to 20130320022012 its reverse (21022002303102), we get a palindrome (41152322325114).

The spelling of 20130320022012 in words is "twenty trillion, one hundred thirty billion, three hundred twenty million, twenty-two thousand, twelve".