11542126565023 has 4 divisors (see below), whose sum is σ = 11568418425520. Its totient is φ = 11515834704528.

The previous prime is 11542126564981. The next prime is 11542126565027. The reversal of 11542126565023 is 32056562124511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11542126565023 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 (11542126565027) 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, 13145929590 + ... + 13145930467.

It is an arithmetic number, because the mean of its divisors is an integer number (2892104606380).

Almost surely, 2^{11542126565023} is an apocalyptic number.

11542126565023 is a deficient number, since it is larger than the sum of its proper divisors (26291860497).

11542126565023 is an equidigital number, since it uses as much as digits as its factorization.

11542126565023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26291860496.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 11542126565023 its reverse (32056562124511), we get a palindrome (43598688689534).

The spelling of 11542126565023 in words is "eleven trillion, five hundred forty-two billion, one hundred twenty-six million, five hundred sixty-five thousand, twenty-three".