1002030021001 has 2 divisors, whose sum is σ = 1002030021002. Its totient is φ = 1002030021000.

The previous prime is 1002030020963. The next prime is 1002030021029. The reversal of 1002030021001 is 1001200302001.

1002030021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989636988025 + 12393032976 = 994805^2 + 111324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002030021001 - 2³⁹ = 452274207113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002030025001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501015010500 + 501015010501.

It is an arithmetic number, because the mean of its divisors is an integer number (501015010501).

Almost surely, 2^{1002030021001} is an apocalyptic number.

It is an amenable number.

1002030021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002030021001 is an equidigital number, since it uses as much as digits as its factorization.

1002030021001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1002030021001 its reverse (1001200302001), we get a palindrome (2003230323002).

The spelling of 1002030021001 in words is "one trillion, two billion, thirty million, twenty-one thousand, one".