20035543201 has 4 divisors (see below), whose sum is σ = 20413572372. Its totient is φ = 19657514032.

The previous prime is 20035543183. The next prime is 20035543243. The reversal of 20035543201 is 10234553002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10234553002 = 2 ⋅5117276501.

It can be written as a sum of positive squares in 2 ways, for example, as 17896018176 + 2139525025 = 133776^2 + 46255^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035543201 - 2⁹ = 20035542689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20035543291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189014506 + ... + 189014611.

It is an arithmetic number, because the mean of its divisors is an integer number (5103393093).

Almost surely, 2^20035543201 is an apocalyptic number.

It is an amenable number.

20035543201 is a deficient number, since it is larger than the sum of its proper divisors (378029171).

20035543201 is an equidigital number, since it uses as much as digits as its factorization.

20035543201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378029170.

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 20035543201 in words is "twenty billion, thirty-five million, five hundred forty-three thousand, two hundred one".