1002015012 has 12 divisors (see below), whose sum is σ = 2338035056. Its totient is φ = 334005000.

The previous prime is 1002014963. The next prime is 1002015013. The reversal of 1002015012 is 2105102001.

1002015012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 83501251 = 1002015012 / (1 + 0 + 0 + 2 + 0 + 1 + 5 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1002015013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41750614 + ... + 41750637.

Almost surely, 2^1002015012 is an apocalyptic number.

1002015012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002015012 is an abundant number, since it is smaller than the sum of its proper divisors (1336020044).

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

1002015012 is a wasteful number, since it uses less digits than its factorization.

1002015012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83501258 (or 83501256 counting only the distinct ones).

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

The square root of 1002015012 is about 31654.6207053567. The cubic root of 1002015012 is about 1000.6712200295.

Adding to 1002015012 its reverse (2105102001), we get a palindrome (3107117013).

The spelling of 1002015012 in words is "one billion, two million, fifteen thousand, twelve".