1100111108453 has 4 divisors (see below), whose sum is σ = 1257269838240. Its totient is φ = 942952378668.

The previous prime is 1100111108449. The next prime is 1100111108471. The reversal of 1100111108453 is 3548011110011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100111108453 - 2² = 1100111108449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100111107453) 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, 78579364883 + ... + 78579364896.

It is an arithmetic number, because the mean of its divisors is an integer number (314317459560).

Almost surely, 2^{1100111108453} is an apocalyptic number.

It is an amenable number.

1100111108453 is a deficient number, since it is larger than the sum of its proper divisors (157158729787).

1100111108453 is an equidigital number, since it uses as much as digits as its factorization.

1100111108453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157158729786.

The product of its (nonzero) digits is 480, while the sum is 26.

Adding to 1100111108453 its reverse (3548011110011), we get a palindrome (4648122218464).

The spelling of 1100111108453 in words is "one trillion, one hundred billion, one hundred eleven million, one hundred eight thousand, four hundred fifty-three".