20132400041081 has 2 divisors, whose sum is σ = 20132400041082. Its totient is φ = 20132400041080.

The previous prime is 20132400041069. The next prime is 20132400041113. The reversal of 20132400041081 is 18014000423102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19681600596025 + 450799445056 = 4436395^2 + 671416^2 .

It is a cyclic number.

It is not a de Polignac number, because 20132400041081 - 2¹⁴ = 20132400024697 is a prime.

It is a super-2 number, since 2×20132400041081² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20132400041081.

It is not a weakly prime, because it can be changed into another prime (20132400041981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066200020540 + 10066200020541.

It is an arithmetic number, because the mean of its divisors is an integer number (10066200020541).

Almost surely, 2^{20132400041081} is an apocalyptic number.

It is an amenable number.

20132400041081 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132400041081 is an equidigital number, since it uses as much as digits as its factorization.

20132400041081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 20132400041081 its reverse (18014000423102), we get a palindrome (38146400464183).

The spelling of 20132400041081 in words is "twenty trillion, one hundred thirty-two billion, four hundred million, forty-one thousand, eighty-one".