1100043420423 has 16 divisors (see below), whose sum is σ = 1551460888320. Its totient is φ = 691867687104.

The previous prime is 1100043420409. The next prime is 1100043420457. The reversal of 1100043420423 is 3240243400011.

It is not a de Polignac number, because 1100043420423 - 2⁸ = 1100043420167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100043420393 and 1100043420402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100043420493) 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, 109191253 + ... + 109201326.

It is an arithmetic number, because the mean of its divisors is an integer number (96966305520).

Almost surely, 2^{1100043420423} is an apocalyptic number.

1100043420423 is a deficient number, since it is larger than the sum of its proper divisors (451417467897).

1100043420423 is a wasteful number, since it uses less digits than its factorization.

1100043420423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218392678.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1100043420423 its reverse (3240243400011), we get a palindrome (4340286820434).

The spelling of 1100043420423 in words is "one trillion, one hundred billion, forty-three million, four hundred twenty thousand, four hundred twenty-three".