1002510012 has 72 divisors (see below), whose sum is σ = 2761820544. Its totient is φ = 282145248.

The previous prime is 1002509987. The next prime is 1002510031. The reversal of 1002510012 is 2100152001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1002510012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26673 + ... + 52119.

Almost surely, 2^1002510012 is an apocalyptic number.

1002510012 is a gapful number since it is divisible by the number (12) 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 1002510012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380910272).

1002510012 is an abundant number, since it is smaller than the sum of its proper divisors (1759310532).

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

1002510012 is a wasteful number, since it uses less digits than its factorization.

1002510012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25535 (or 25526 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1002510012 is about 31662.4385036908. The cubic root of 1002510012 is about 1000.8359716234.

Adding to 1002510012 its reverse (2100152001), we get a palindrome (3102662013).

The spelling of 1002510012 in words is "one billion, two million, five hundred ten thousand, twelve".