11110431423 has 32 divisors (see below), whose sum is σ = 18541555200. Its totient is φ = 5761109376.

The previous prime is 11110431407. The next prime is 11110431457. The reversal of 11110431423 is 32413401111.

It is not a de Polignac number, because 11110431423 - 2⁴ = 11110431407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11110431423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110431463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328788 + ... + 361001.

It is an arithmetic number, because the mean of its divisors is an integer number (579423600).

Almost surely, 2^11110431423 is an apocalyptic number.

11110431423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11110431423 is a deficient number, since it is larger than the sum of its proper divisors (7431123777).

11110431423 is a wasteful number, since it uses less digits than its factorization.

11110431423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689871.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11110431423 its reverse (32413401111), we get a palindrome (43523832534).

The spelling of 11110431423 in words is "eleven billion, one hundred ten million, four hundred thirty-one thousand, four hundred twenty-three".