1002600012 has 12 divisors (see below), whose sum is σ = 2339400056. Its totient is φ = 334200000.

The previous prime is 1002599987. The next prime is 1002600013. The reversal of 1002600012 is 2100062001.

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: 83550001 = 1002600012 / (1 + 0 + 0 + 2 + 6 + 0 + 0 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1002600013) 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, 41774989 + ... + 41775012.

Almost surely, 2^1002600012 is an apocalyptic number.

1002600012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002600012 is an abundant number, since it is smaller than the sum of its proper divisors (1336800044).

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

1002600012 is a wasteful number, since it uses less digits than its factorization.

1002600012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83550008 (or 83550006 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1002600012 is about 31663.8597141915. The cubic root of 1002600012 is about 1000.8659206317.

Adding to 1002600012 its reverse (2100062001), we get a palindrome (3102662013).

The spelling of 1002600012 in words is "one billion, two million, six hundred thousand, twelve".