1023000100 has 72 divisors (see below), whose sum is σ = 2303359520. Its totient is φ = 394087680.

The previous prime is 1023000089. The next prime is 1023000101. The reversal of 1023000100 is 10003201.

It is not an unprimeable number, because it can be changed into a prime (1023000101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312271 + ... + 315529.

Almost surely, 2^1023000100 is an apocalyptic number.

1023000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151679760).

1023000100 is an abundant number, since it is smaller than the sum of its proper divisors (1280359420).

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

1023000100 is a wasteful number, since it uses less digits than its factorization.

1023000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389 (or 3382 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1023000100 is about 31984.3727467024. The cubic root of 1023000100 is about 1007.6086614448.

Adding to 1023000100 its reverse (10003201), we get a palindrome (1033003301).

The spelling of 1023000100 in words is "one billion, twenty-three million, one hundred", and thus it is an aban number.