11523131132351 has 16 divisors (see below), whose sum is σ = 11693447221248. Its totient is φ = 11353960212000.

The previous prime is 11523131132321. The next prime is 11523131132449. The reversal of 11523131132351 is 15323113132511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11523131132351 - 2⁶ = 11523131132287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11523131132321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54529586 + ... + 54740496.

It is an arithmetic number, because the mean of its divisors is an integer number (730840451328).

Almost surely, 2^{11523131132351} is an apocalyptic number.

11523131132351 is a deficient number, since it is larger than the sum of its proper divisors (170316088897).

11523131132351 is a wasteful number, since it uses less digits than its factorization.

11523131132351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213622.

The product of its digits is 8100, while the sum is 32.

Adding to 11523131132351 its reverse (15323113132511), we get a palindrome (26846244264862).

The spelling of 11523131132351 in words is "eleven trillion, five hundred twenty-three billion, one hundred thirty-one million, one hundred thirty-two thousand, three hundred fifty-one".