203454421414 has 32 divisors (see below), whose sum is σ = 328352766336. Its totient is φ = 94208225280.

The previous prime is 203454421409. The next prime is 203454421421. The reversal of 203454421414 is 414124454302.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 203454421414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392259 + ... + 748849.

It is an arithmetic number, because the mean of its divisors is an integer number (10261023948).

Almost surely, 2^203454421414 is an apocalyptic number.

203454421414 is a deficient number, since it is larger than the sum of its proper divisors (124898344922).

203454421414 is a wasteful number, since it uses less digits than its factorization.

203454421414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356880.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 203454421414 its reverse (414124454302), we get a palindrome (617578875716).

The spelling of 203454421414 in words is "two hundred three billion, four hundred fifty-four million, four hundred twenty-one thousand, four hundred fourteen".