20143434201 has 32 divisors (see below), whose sum is σ = 31091696640. Its totient is φ = 11479406400.

The previous prime is 20143434197. The next prime is 20143434221. The reversal of 20143434201 is 10243434102.

It is not a de Polignac number, because 20143434201 - 2² = 20143434197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20143434221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180130 + ... + 269691.

It is an arithmetic number, because the mean of its divisors is an integer number (971615520).

Almost surely, 2^20143434201 is an apocalyptic number.

It is an amenable number.

20143434201 is a deficient number, since it is larger than the sum of its proper divisors (10948262439).

20143434201 is a wasteful number, since it uses less digits than its factorization.

20143434201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449917.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20143434201 its reverse (10243434102), we get a palindrome (30386868303).

Subtracting from 20143434201 its reverse (10243434102), we obtain a palindrome (9900000099).

The spelling of 20143434201 in words is "twenty billion, one hundred forty-three million, four hundred thirty-four thousand, two hundred one".