1002121021039 has 2 divisors, whose sum is σ = 1002121021040. Its totient is φ = 1002121021038.

The previous prime is 1002121020991. The next prime is 1002121021061. The reversal of 1002121021039 is 9301201212001.

1002121021039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (1002121021061) can be obtained adding 1002121021039 to its sum of digits (22).

It is a strong prime.

It is an emirp because it is prime and its reverse (9301201212001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002121021039 - 2¹¹ = 1002121018991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002121321039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501060510519 + 501060510520.

It is an arithmetic number, because the mean of its divisors is an integer number (501060510520).

Almost surely, 2^{1002121021039} is an apocalyptic number.

1002121021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002121021039 is an equidigital number, since it uses as much as digits as its factorization.

1002121021039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1002121021039 in words is "one trillion, two billion, one hundred twenty-one million, twenty-one thousand, thirty-nine".