1100140423 has 4 divisors (see below), whose sum is σ = 1125725128. Its totient is φ = 1074555720.

The previous prime is 1100140417. The next prime is 1100140427. The reversal of 1100140423 is 3240410011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100140423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100140397 and 1100140406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100140427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12792288 + ... + 12792373.

It is an arithmetic number, because the mean of its divisors is an integer number (281431282).

Almost surely, 2^1100140423 is an apocalyptic number.

1100140423 is a deficient number, since it is larger than the sum of its proper divisors (25584705).

1100140423 is an equidigital number, since it uses as much as digits as its factorization.

1100140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25584704.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1100140423 is about 33168.3647923741. The cubic root of 1100140423 is about 1032.3240396088.

Adding to 1100140423 its reverse (3240410011), we get a palindrome (4340550434).

The spelling of 1100140423 in words is "one billion, one hundred million, one hundred forty thousand, four hundred twenty-three".