20202020019953 has 2 divisors, whose sum is σ = 20202020019954. Its totient is φ = 20202020019952.

The previous prime is 20202020019941. The next prime is 20202020020031. The reversal of 20202020019953 is 35991002020202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17566258028944 + 2635761991009 = 4191212^2 + 1623503^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202020019953 - 2¹⁸ = 20202019757809 is a prime.

It is a super-2 number, since 2×20202020019953² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20202020019653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101010009976 + 10101010009977.

It is an arithmetic number, because the mean of its divisors is an integer number (10101010009977).

Almost surely, 2^{20202020019953} is an apocalyptic number.

It is an amenable number.

20202020019953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202020019953 is an equidigital number, since it uses as much as digits as its factorization.

20202020019953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 20202020019953 in words is "twenty trillion, two hundred two billion, twenty million, nineteen thousand, nine hundred fifty-three".