204013020343 has 16 divisors (see below), whose sum is σ = 223724390400. Its totient is φ = 184496162400.

The previous prime is 204013020329. The next prime is 204013020347. The reversal of 204013020343 is 343020310402.

It is a happy number.

It is not a de Polignac number, because 204013020343 - 2⁵ = 204013020311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204013020347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21077421 + ... + 21087097.

It is an arithmetic number, because the mean of its divisors is an integer number (13982774400).

Almost surely, 2^204013020343 is an apocalyptic number.

204013020343 is a deficient number, since it is larger than the sum of its proper divisors (19711370057).

204013020343 is a wasteful number, since it uses less digits than its factorization.

204013020343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19518.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 204013020343 its reverse (343020310402), we get a palindrome (547033330745).

The spelling of 204013020343 in words is "two hundred four billion, thirteen million, twenty thousand, three hundred forty-three".