11521005234331 has 2 divisors, whose sum is σ = 11521005234332. Its totient is φ = 11521005234330.

The previous prime is 11521005234293. The next prime is 11521005234373. The reversal of 11521005234331 is 13343250012511.

It is a weak prime.

It is an emirp because it is prime and its reverse (13343250012511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11521005234331 - 2¹⁹ = 11521004710043 is a prime.

It is a super-2 number, since 2×11521005234331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11521005234293 and 11521005234302.

It is not a weakly prime, because it can be changed into another prime (11521005234031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760502617165 + 5760502617166.

It is an arithmetic number, because the mean of its divisors is an integer number (5760502617166).

Almost surely, 2^{11521005234331} is an apocalyptic number.

11521005234331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11521005234331 is an equidigital number, since it uses as much as digits as its factorization.

11521005234331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 11521005234331 its reverse (13343250012511), we get a palindrome (24864255246842).

The spelling of 11521005234331 in words is "eleven trillion, five hundred twenty-one billion, five million, two hundred thirty-four thousand, three hundred thirty-one".