11523344101531 has 4 divisors (see below), whose sum is σ = 11523771124632. Its totient is φ = 11522917078432.

The previous prime is 11523344101483. The next prime is 11523344101583. The reversal of 11523344101531 is 13510144332511.

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 11523344101531 - 2¹⁵ = 11523344068763 is a prime.

It is a super-2 number, since 2×11523344101531² (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 (11523344101331) 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, 213471070 + ... + 213525043.

It is an arithmetic number, because the mean of its divisors is an integer number (2880942781158).

Almost surely, 2^{11523344101531} is an apocalyptic number.

11523344101531 is a deficient number, since it is larger than the sum of its proper divisors (427023101).

11523344101531 is an equidigital number, since it uses as much as digits as its factorization.

11523344101531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427023100.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 11523344101531 in words is "eleven trillion, five hundred twenty-three billion, three hundred forty-four million, one hundred one thousand, five hundred thirty-one".