11101131423 has 24 divisors (see below), whose sum is σ = 16870032816. Its totient is φ = 7025097600.

The previous prime is 11101131407. The next prime is 11101131451. The reversal of 11101131423 is 32413110111.

It is a happy number.

11101131423 is a `hidden beast` number, since 1 + 110 + 1 + 131 + 423 = 666.

It is not a de Polignac number, because 11101131423 - 2⁴ = 11101131407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11101131396 and 11101131405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101131323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392893 + ... + 420198.

It is an arithmetic number, because the mean of its divisors is an integer number (702918034).

Almost surely, 2^11101131423 is an apocalyptic number.

11101131423 is a deficient number, since it is larger than the sum of its proper divisors (5768901393).

11101131423 is a wasteful number, since it uses less digits than its factorization.

11101131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813175 (or 813172 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11101131423 its reverse (32413110111), we get a palindrome (43514241534).

The spelling of 11101131423 in words is "eleven billion, one hundred one million, one hundred thirty-one thousand, four hundred twenty-three".