1020113000 has 32 divisors (see below), whose sum is σ = 2387066760. Its totient is φ = 408044800.

The previous prime is 1020112981. The next prime is 1020113047. The reversal of 1020113000 is 3110201.

1020113000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 457189924 + 562923076 = 21382^2 + 23726^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

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, 509057 + ... + 511056.

Almost surely, 2^1020113000 is an apocalyptic number.

1020113000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020113000 is an abundant number, since it is smaller than the sum of its proper divisors (1366953760).

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

1020113000 is a wasteful number, since it uses less digits than its factorization.

1020113000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020134 (or 1020120 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1020113000 is about 31939.2078799710. The cubic root of 1020113000 is about 1006.6598808562.

Adding to 1020113000 its reverse (3110201), we get a palindrome (1023223201).

The spelling of 1020113000 in words is "one billion, twenty million, one hundred thirteen thousand".