20132112300021 has 12 divisors (see below), whose sum is σ = 29406456169740. Its totient is φ = 13270605860160.

The previous prime is 20132112300019. The next prime is 20132112300023. The reversal of 20132112300021 is 12000321123102.

20132112300021 is a `hidden beast` number, since 20 + 1 + 321 + 1 + 2 + 300 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (20132112300019) and next prime (20132112300023).

It can be written as a sum of positive squares in 2 ways, for example, as 14406807096900 + 5725305203121 = 3795630^2 + 2392761^2 .

It is not a de Polignac number, because 20132112300021 - 2¹ = 20132112300019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20132112299967 and 20132112300003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132112300023) 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, 12566860810 + ... + 12566862411.

It is an arithmetic number, because the mean of its divisors is an integer number (2450538014145).

Almost surely, 2^{20132112300021} is an apocalyptic number.

It is an amenable number.

20132112300021 is a deficient number, since it is larger than the sum of its proper divisors (9274343869719).

20132112300021 is a wasteful number, since it uses less digits than its factorization.

20132112300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25133723316 (or 25133723313 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20132112300021 its reverse (12000321123102), we get a palindrome (32132433423123).

The spelling of 20132112300021 in words is "twenty trillion, one hundred thirty-two billion, one hundred twelve million, three hundred thousand, twenty-one".