11000040431 has 16 divisors (see below), whose sum is σ = 11443191840. Its totient is φ = 10561326720.

The previous prime is 11000040409. The next prime is 11000040473. The reversal of 11000040431 is 13404000011.

It is a happy number.

It is not a de Polignac number, because 11000040431 - 2²⁶ = 10932931567 is a prime.

It is a super-2 number, since 2×11000040431² (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 (11000040731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4512545 + ... + 4514981.

It is an arithmetic number, because the mean of its divisors is an integer number (715199490).

Almost surely, 2^11000040431 is an apocalyptic number.

11000040431 is a deficient number, since it is larger than the sum of its proper divisors (443151409).

11000040431 is a wasteful number, since it uses less digits than its factorization.

11000040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11000040431 its reverse (13404000011), we get a palindrome (24404040442).

The spelling of 11000040431 in words is "eleven billion, forty thousand, four hundred thirty-one".