11537126423 has 4 divisors (see below), whose sum is σ = 11552654928. Its totient is φ = 11521597920.

The previous prime is 11537126413. The next prime is 11537126437. The reversal of 11537126423 is 32462173511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32462173511 = 34369 ⋅944519.

It is a cyclic number.

It is not a de Polignac number, because 11537126423 - 2³⁰ = 10463384599 is a prime.

It is a super-2 number, since 2×11537126423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11537126413) 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, 7763138 + ... + 7764623.

It is an arithmetic number, because the mean of its divisors is an integer number (2888163732).

Almost surely, 2^11537126423 is an apocalyptic number.

11537126423 is a deficient number, since it is larger than the sum of its proper divisors (15528505).

11537126423 is an equidigital number, since it uses as much as digits as its factorization.

11537126423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15528504.

The product of its digits is 30240, while the sum is 35.

Adding to 11537126423 its reverse (32462173511), we get a palindrome (43999299934).

The spelling of 11537126423 in words is "eleven billion, five hundred thirty-seven million, one hundred twenty-six thousand, four hundred twenty-three".