521131152001 has 2 divisors, whose sum is σ = 521131152002. Its totient is φ = 521131152000.

The previous prime is 521131151971. The next prime is 521131152037. The reversal of 521131152001 is 100251131125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508438876401 + 12692275600 = 713049^2 + 112660^2 .

It is a cyclic number.

It is not a de Polignac number, because 521131152001 - 2⁷ = 521131151873 is a prime.

It is not a weakly prime, because it can be changed into another prime (521131155001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260565576000 + 260565576001.

It is an arithmetic number, because the mean of its divisors is an integer number (260565576001).

Almost surely, 2^521131152001 is an apocalyptic number.

It is an amenable number.

521131152001 is a deficient number, since it is larger than the sum of its proper divisors (1).

521131152001 is an equidigital number, since it uses as much as digits as its factorization.

521131152001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 521131152001 its reverse (100251131125), we get a palindrome (621382283126).

The spelling of 521131152001 in words is "five hundred twenty-one billion, one hundred thirty-one million, one hundred fifty-two thousand, one".