1230011000 has 64 divisors (see below), whose sum is σ = 2899260000. Its totient is φ = 488409600.

The previous prime is 1230010987. The next prime is 1230011023. The reversal of 1230011000 is 1100321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134576 + ... + 143424.

Almost surely, 2^1230011000 is an apocalyptic number.

1230011000 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 1230011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1449630000).

1230011000 is an abundant number, since it is smaller than the sum of its proper divisors (1669249000).

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

1230011000 is a wasteful number, since it uses less digits than its factorization.

1230011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009 (or 8995 counting only the distinct ones).

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

The square root of 1230011000 is about 35071.5126562856. The cubic root of 1230011000 is about 1071.4444636796. Note that the first 4 decimals are identical.

Adding to 1230011000 its reverse (1100321), we get a palindrome (1231111321).

The spelling of 1230011000 in words is "one billion, two hundred thirty million, eleven thousand".