1020198118 has 16 divisors (see below), whose sum is σ = 1621121040. Its totient is φ = 479854336.

The previous prime is 1020198061. The next prime is 1020198131. The reversal of 1020198118 is 8118910201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020198118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75093 + ... + 87631.

It is an arithmetic number, because the mean of its divisors is an integer number (101320065).

Almost surely, 2^1020198118 is an apocalyptic number.

1020198118 is a deficient number, since it is larger than the sum of its proper divisors (600922922).

1020198118 is a wasteful number, since it uses less digits than its factorization.

1020198118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14951.

The product of its (nonzero) digits is 1152, while the sum is 31.

The square root of 1020198118 is about 31940.5403523485. The cubic root of 1020198118 is about 1006.6878785691.

The spelling of 1020198118 in words is "one billion, twenty million, one hundred ninety-eight thousand, one hundred eighteen".