20343545201 has 16 divisors (see below), whose sum is σ = 23983643520. Its totient is φ = 16895450880.

The previous prime is 20343545179. The next prime is 20343545207. The reversal of 20343545201 is 10254534302.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20343545201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20343545207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326936 + ... + 384153.

It is an arithmetic number, because the mean of its divisors is an integer number (1498977720).

Almost surely, 2^20343545201 is an apocalyptic number.

It is an amenable number.

20343545201 is a deficient number, since it is larger than the sum of its proper divisors (3640098319).

20343545201 is an equidigital number, since it uses as much as digits as its factorization.

20343545201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711224.

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 20343545201 in words is "twenty billion, three hundred forty-three million, five hundred forty-five thousand, two hundred one".