11040031431 has 128 divisors (see below), whose sum is σ = 20348697600. Its totient is φ = 5822046720.

The previous prime is 11040031423. The next prime is 11040031447. The reversal of 11040031431 is 13413004011.

It is not a de Polignac number, because 11040031431 - 2³ = 11040031423 is a prime.

It is a super-2 number, since 2×11040031431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040031481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4813521 + ... + 4815813.

It is an arithmetic number, because the mean of its divisors is an integer number (158974200).

Almost surely, 2^11040031431 is an apocalyptic number.

11040031431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11040031431 is a deficient number, since it is larger than the sum of its proper divisors (9308666169).

11040031431 is a wasteful number, since it uses less digits than its factorization.

11040031431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11040031431 its reverse (13413004011), we get a palindrome (24453035442).

The spelling of 11040031431 in words is "eleven billion, forty million, thirty-one thousand, four hundred thirty-one".