11526001521231 has 4 divisors (see below), whose sum is σ = 15368002028312. Its totient is φ = 7684001014152.

The previous prime is 11526001521179. The next prime is 11526001521239. The reversal of 11526001521231 is 13212510062511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11526001521231 - 2²⁶ = 11525934412367 is a prime.

It is a super-3 number, since 3×11526001521231³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11526001521239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921000253536 + ... + 1921000253541.

It is an arithmetic number, because the mean of its divisors is an integer number (3842000507078).

Almost surely, 2^{11526001521231} is an apocalyptic number.

11526001521231 is a deficient number, since it is larger than the sum of its proper divisors (3842000507081).

11526001521231 is an equidigital number, since it uses as much as digits as its factorization.

11526001521231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842000507080.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 11526001521231 its reverse (13212510062511), we get a palindrome (24738511583742).

The spelling of 11526001521231 in words is "eleven trillion, five hundred twenty-six billion, one million, five hundred twenty-one thousand, two hundred thirty-one".