203440445134 has 8 divisors (see below), whose sum is σ = 305192647008. Its totient is φ = 101709562800.

The previous prime is 203440445101. The next prime is 203440445141. The reversal of 203440445134 is 431544044302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×203440445134³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203440445134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306007 + ... + 5344210.

It is an arithmetic number, because the mean of its divisors is an integer number (38149080876).

Almost surely, 2^203440445134 is an apocalyptic number.

203440445134 is a deficient number, since it is larger than the sum of its proper divisors (101752201874).

203440445134 is a wasteful number, since it uses less digits than its factorization.

203440445134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10659770.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 203440445134 its reverse (431544044302), we get a palindrome (634984489436).

The spelling of 203440445134 in words is "two hundred three billion, four hundred forty million, four hundred forty-five thousand, one hundred thirty-four".