11531423326 has 8 divisors (see below), whose sum is σ = 17302690080. Its totient is φ = 5763859968.

The previous prime is 11531423317. The next prime is 11531423329. The reversal of 11531423326 is 62332413511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531423329) 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, 918051 + ... + 930526.

It is an arithmetic number, because the mean of its divisors is an integer number (2162836260).

Almost surely, 2^11531423326 is an apocalyptic number.

11531423326 is a deficient number, since it is larger than the sum of its proper divisors (5771266754).

11531423326 is a wasteful number, since it uses less digits than its factorization.

11531423326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851698.

The product of its digits is 12960, while the sum is 31.

Adding to 11531423326 its reverse (62332413511), we get a palindrome (73863836837).

The spelling of 11531423326 in words is "eleven billion, five hundred thirty-one million, four hundred twenty-three thousand, three hundred twenty-six".