1115002000 has 160 divisors (see below), whose sum is σ = 3126299904. Its totient is φ = 376704000.

The previous prime is 1115001977. The next prime is 1115002033. The reversal of 1115002000 is 2005111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021455 + ... + 1022545.

Almost surely, 2^1115002000 is an apocalyptic number.

1115002000 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 1115002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563149952).

1115002000 is an abundant number, since it is smaller than the sum of its proper divisors (2011297904).

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

1115002000 is a wasteful number, since it uses less digits than its factorization.

1115002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1115002000 is about 33391.6456617520. The cubic root of 1115002000 is about 1036.9517498203.

Adding to 1115002000 its reverse (2005111), we get a palindrome (1117007111).

The spelling of 1115002000 in words is "one billion, one hundred fifteen million, two thousand".