1002030021009 has 24 divisors (see below), whose sum is σ = 1463729810400. Its totient is φ = 660473352000.

The previous prime is 1002030021001. The next prime is 1002030021029. The reversal of 1002030021009 is 9001200302001.

It is a happy number.

1002030021009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1002030021009 - 2³ = 1002030021001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002030020982 and 1002030021000.

It is not an unprimeable number, because it can be changed into a prime (1002030021001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18443134 + ... + 18497384.

It is an arithmetic number, because the mean of its divisors is an integer number (60988742100).

Almost surely, 2^{1002030021009} is an apocalyptic number.

It is an amenable number.

1002030021009 is a deficient number, since it is larger than the sum of its proper divisors (461699789391).

1002030021009 is a wasteful number, since it uses less digits than its factorization.

1002030021009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77405 (or 77402 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The spelling of 1002030021009 in words is "one trillion, two billion, thirty million, twenty-one thousand, nine".