11521593329 has 2 divisors, whose sum is σ = 11521593330. Its totient is φ = 11521593328.

The previous prime is 11521593263. The next prime is 11521593383. The reversal of 11521593329 is 92339512511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7387746304 + 4133847025 = 85952^2 + 64295^2 .

It is an emirp because it is prime and its reverse (92339512511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11521593329 is a prime.

It is a super-2 number, since 2×11521593329² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11521593029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760796664 + 5760796665.

It is an arithmetic number, because the mean of its divisors is an integer number (5760796665).

Almost surely, 2^11521593329 is an apocalyptic number.

It is an amenable number.

11521593329 is a deficient number, since it is larger than the sum of its proper divisors (1).

11521593329 is an equidigital number, since it uses as much as digits as its factorization.

11521593329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 41.

The spelling of 11521593329 in words is "eleven billion, five hundred twenty-one million, five hundred ninety-three thousand, three hundred twenty-nine".