1100040431 has 16 divisors (see below), whose sum is σ = 1287607104. Its totient is φ = 920346624.

The previous prime is 1100040419. The next prime is 1100040433. The reversal of 1100040431 is 1340400011.

It is a happy number.

It is not a de Polignac number, because 1100040431 - 2⁶ = 1100040367 is a prime.

It is a super-2 number, since 2×1100040431² = 2420177899669331522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100040433) 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, 38471 + ... + 60663.

It is an arithmetic number, because the mean of its divisors is an integer number (80475444).

Almost surely, 2^1100040431 is an apocalyptic number.

1100040431 is a deficient number, since it is larger than the sum of its proper divisors (187566673).

1100040431 is an equidigital number, since it uses as much as digits as its factorization.

1100040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22370.

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

The square root of 1100040431 is about 33166.8574182119. The cubic root of 1100040431 is about 1032.2927626097.

Adding to 1100040431 its reverse (1340400011), we get a palindrome (2440440442).

The spelling of 1100040431 in words is "one billion, one hundred million, forty thousand, four hundred thirty-one".