11405431103 has 8 divisors (see below), whose sum is σ = 12457416576. Its totient is φ = 10355967000.

The previous prime is 11405431043. The next prime is 11405431117. The reversal of 11405431103 is 30113450411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11405431103 - 2⁶ = 11405431039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405431183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620873 + ... + 638978.

It is an arithmetic number, because the mean of its divisors is an integer number (1557177072).

Almost surely, 2^11405431103 is an apocalyptic number.

11405431103 is a deficient number, since it is larger than the sum of its proper divisors (1051985473).

11405431103 is a wasteful number, since it uses less digits than its factorization.

11405431103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260685.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11405431103 its reverse (30113450411), we get a palindrome (41518881514).

The spelling of 11405431103 in words is "eleven billion, four hundred five million, four hundred thirty-one thousand, one hundred three".