1118213423 has 8 divisors (see below), whose sum is σ = 1132779648. Its totient is φ = 1103718744.

The previous prime is 1118213417. The next prime is 1118213449. The reversal of 1118213423 is 3243128111.

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 1118213423 - 2⁶ = 1118213359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118213392 and 1118213401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118213923) 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, 13940 + ... + 49302.

It is an arithmetic number, because the mean of its divisors is an integer number (141597456).

Almost surely, 2^1118213423 is an apocalyptic number.

1118213423 is a deficient number, since it is larger than the sum of its proper divisors (14566225).

1118213423 is a wasteful number, since it uses less digits than its factorization.

1118213423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35773.

The product of its digits is 1152, while the sum is 26.

The square root of 1118213423 is about 33439.6983090458. The cubic root of 1118213423 is about 1037.9463365869.

The spelling of 1118213423 in words is "one billion, one hundred eighteen million, two hundred thirteen thousand, four hundred twenty-three".