11523641451331 has 4 divisors (see below), whose sum is σ = 12201502713192. Its totient is φ = 10845780189472.

The previous prime is 11523641451323. The next prime is 11523641451353. The reversal of 11523641451331 is 13315414632511.

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

It is a cyclic number.

It is not a de Polignac number, because 11523641451331 - 2³ = 11523641451323 is a prime.

It is a super-2 number, since 2×11523641451331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523641451391) 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, 338930630905 + ... + 338930630938.

It is an arithmetic number, because the mean of its divisors is an integer number (3050375678298).

Almost surely, 2^{11523641451331} is an apocalyptic number.

11523641451331 is a deficient number, since it is larger than the sum of its proper divisors (677861261861).

11523641451331 is an equidigital number, since it uses as much as digits as its factorization.

11523641451331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677861261860.

The product of its digits is 129600, while the sum is 40.

The spelling of 11523641451331 in words is "eleven trillion, five hundred twenty-three billion, six hundred forty-one million, four hundred fifty-one thousand, three hundred thirty-one".