1118016523 has 4 divisors (see below), whose sum is σ = 1204017808. Its totient is φ = 1032015240.

The previous prime is 1118016517. The next prime is 1118016553. The reversal of 1118016523 is 3256108111.

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

It is a cyclic number.

It is not a de Polignac number, because 1118016523 - 2⁵ = 1118016491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118016491 and 1118016500.

It is not an unprimeable number, because it can be changed into a prime (1118016553) 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, 43000623 + ... + 43000648.

It is an arithmetic number, because the mean of its divisors is an integer number (301004452).

Almost surely, 2^1118016523 is an apocalyptic number.

1118016523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1118016523 is a deficient number, since it is larger than the sum of its proper divisors (86001285).

1118016523 is an equidigital number, since it uses as much as digits as its factorization.

1118016523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86001284.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1118016523 is about 33436.7540739229. The cubic root of 1118016523 is about 1037.8854109394.

The spelling of 1118016523 in words is "one billion, one hundred eighteen million, sixteen thousand, five hundred twenty-three".