11521006413231 has 96 divisors (see below), whose sum is σ = 18034156707840. Its totient is φ = 6407476891200.

The previous prime is 11521006413227. The next prime is 11521006413283. The reversal of 11521006413231 is 13231460012511.

It is not a de Polignac number, because 11521006413231 - 2² = 11521006413227 is a prime.

It is a super-2 number, since 2×11521006413231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521006413221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5650320910 + ... + 5650322948.

It is an arithmetic number, because the mean of its divisors is an integer number (187855799040).

Almost surely, 2^{11521006413231} is an apocalyptic number.

11521006413231 is a deficient number, since it is larger than the sum of its proper divisors (6513150294609).

11521006413231 is a wasteful number, since it uses less digits than its factorization.

11521006413231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 11521006413231 its reverse (13231460012511), we get a palindrome (24752466425742).

The spelling of 11521006413231 in words is "eleven trillion, five hundred twenty-one billion, six million, four hundred thirteen thousand, two hundred thirty-one".