20321201412 has 18 divisors (see below), whose sum is σ = 51367481438. Its totient is φ = 6773733792.

The previous prime is 20321201399. The next prime is 20321201449. The reversal of 20321201412 is 21410212302.

It is a happy number.

20321201412 is a `hidden beast` number, since 20 + 32 + 1 + 201 + 412 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12630612996 + 7690588416 = 112386^2 + 87696^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282238873 + ... + 282238944.

Almost surely, 2^20321201412 is an apocalyptic number.

It is an amenable number.

20321201412 is an abundant number, since it is smaller than the sum of its proper divisors (31046280026).

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

20321201412 is a wasteful number, since it uses less digits than its factorization.

20321201412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564477827 (or 564477822 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20321201412 its reverse (21410212302), we get a palindrome (41731413714).

The spelling of 20321201412 in words is "twenty billion, three hundred twenty-one million, two hundred one thousand, four hundred twelve".