1118611818403 has 8 divisors (see below), whose sum is σ = 1145971599696. Its totient is φ = 1091255683200.

The previous prime is 1118611818371. The next prime is 1118611818463. The reversal of 1118611818403 is 3048181168111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1118611818403 - 2⁵ = 1118611818371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118611818403.

It is not an unprimeable number, because it can be changed into a prime (1118611818463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285226 + ... + 1522687.

It is an arithmetic number, because the mean of its divisors is an integer number (143246449962).

Almost surely, 2^{1118611818403} is an apocalyptic number.

1118611818403 is a deficient number, since it is larger than the sum of its proper divisors (27359781293).

1118611818403 is a wasteful number, since it uses less digits than its factorization.

1118611818403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823045.

The product of its (nonzero) digits is 36864, while the sum is 43.

The spelling of 1118611818403 in words is "one trillion, one hundred eighteen billion, six hundred eleven million, eight hundred eighteen thousand, four hundred three".