204132132521 has 2 divisors, whose sum is σ = 204132132522. Its totient is φ = 204132132520.

The previous prime is 204132132439. The next prime is 204132132587. The reversal of 204132132521 is 125231231402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203834190400 + 297942121 = 451480^2 + 17261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204132132521 is a prime.

It is a super-2 number, since 2×204132132521² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204152132521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102066066260 + 102066066261.

It is an arithmetic number, because the mean of its divisors is an integer number (102066066261).

Almost surely, 2^204132132521 is an apocalyptic number.

It is an amenable number.

204132132521 is a deficient number, since it is larger than the sum of its proper divisors (1).

204132132521 is an equidigital number, since it uses as much as digits as its factorization.

204132132521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 204132132521 its reverse (125231231402), we get a palindrome (329363363923).

The spelling of 204132132521 in words is "two hundred four billion, one hundred thirty-two million, one hundred thirty-two thousand, five hundred twenty-one".