20601032703989 has 2 divisors, whose sum is σ = 20601032703990. Its totient is φ = 20601032703988.

The previous prime is 20601032703973. The next prime is 20601032704121. The reversal of 20601032703989 is 98930723010602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16712970422500 + 3888062281489 = 4088150^2 + 1971817^2 .

It is a cyclic number.

It is not a de Polignac number, because 20601032703989 - 2⁴ = 20601032703973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20601032703089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300516351994 + 10300516351995.

It is an arithmetic number, because the mean of its divisors is an integer number (10300516351995).

Almost surely, 2^{20601032703989} is an apocalyptic number.

It is an amenable number.

20601032703989 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601032703989 is an equidigital number, since it uses as much as digits as its factorization.

20601032703989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 20601032703989 in words is "twenty trillion, six hundred one billion, thirty-two million, seven hundred three thousand, nine hundred eighty-nine".