20502030701 has 2 divisors, whose sum is σ = 20502030702. Its totient is φ = 20502030700.

The previous prime is 20502030691. The next prime is 20502030721. The reversal of 20502030701 is 10703020502.

It is an a-pointer prime, because the next prime (20502030721) can be obtained adding 20502030701 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19542642025 + 959388676 = 139795^2 + 30974^2 .

It is a cyclic number.

It is not a de Polignac number, because 20502030701 - 2¹⁴ = 20502014317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20502030721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10251015350 + 10251015351.

It is an arithmetic number, because the mean of its divisors is an integer number (10251015351).

Almost surely, 2^20502030701 is an apocalyptic number.

It is an amenable number.

20502030701 is a deficient number, since it is larger than the sum of its proper divisors (1).

20502030701 is an equidigital number, since it uses as much as digits as its factorization.

20502030701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The spelling of 20502030701 in words is "twenty billion, five hundred two million, thirty thousand, seven hundred one".