10202121121039 has 2 divisors, whose sum is σ = 10202121121040. Its totient is φ = 10202121121038.

The previous prime is 10202121121033. The next prime is 10202121121051. The reversal of 10202121121039 is 93012112120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10202121121039 - 2⁵ = 10202121121007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10202121121033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101060560519 + 5101060560520.

It is an arithmetic number, because the mean of its divisors is an integer number (5101060560520).

Almost surely, 2^{10202121121039} is an apocalyptic number.

10202121121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202121121039 is an equidigital number, since it uses as much as digits as its factorization.

10202121121039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 10202121121039 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty-one thousand, thirty-nine".