1132521212521 has 2 divisors, whose sum is σ = 1132521212522. Its totient is φ = 1132521212520.

The previous prime is 1132521212513. The next prime is 1132521212527. The reversal of 1132521212521 is 1252121252311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965628536896 + 166892675625 = 982664^2 + 408525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132521212521 - 2³ = 1132521212513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1132521212521.

It is not a weakly prime, because it can be changed into another prime (1132521212527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566260606260 + 566260606261.

It is an arithmetic number, because the mean of its divisors is an integer number (566260606261).

Almost surely, 2^{1132521212521} is an apocalyptic number.

It is an amenable number.

1132521212521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132521212521 is an equidigital number, since it uses as much as digits as its factorization.

1132521212521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 28.

Adding to 1132521212521 its reverse (1252121252311), we get a palindrome (2384642464832).

The spelling of 1132521212521 in words is "one trillion, one hundred thirty-two billion, five hundred twenty-one million, two hundred twelve thousand, five hundred twenty-one".