1100020158 has 24 divisors (see below), whose sum is σ = 2407951728. Its totient is φ = 362892672.

The previous prime is 1100020133. The next prime is 1100020177. The reversal of 1100020158 is 8510200011.

1100020158 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1100020158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313266 + ... + 316757.

It is an arithmetic number, because the mean of its divisors is an integer number (100331322).

Almost surely, 2^1100020158 is an apocalyptic number.

1100020158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1100020158 is an abundant number, since it is smaller than the sum of its proper divisors (1307931570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100020158 is a wasteful number, since it uses less digits than its factorization.

1100020158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630128 (or 630125 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1100020158 is about 33166.5517954460. The cubic root of 1100020158 is about 1032.2864210853.

Adding to 1100020158 its reverse (8510200011), we get a palindrome (9610220169).

The spelling of 1100020158 in words is "one billion, one hundred million, twenty thousand, one hundred fifty-eight".