203433631055 has 32 divisors (see below), whose sum is σ = 258694689600. Its totient is φ = 153343224832.

The previous prime is 203433631033. The next prime is 203433631087. The reversal of 203433631055 is 550136334302.

It is not a de Polignac number, because 203433631055 - 2¹⁰ = 203433630031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085249 + ... + 1258821.

It is an arithmetic number, because the mean of its divisors is an integer number (8084209050).

Almost surely, 2^203433631055 is an apocalyptic number.

203433631055 is a deficient number, since it is larger than the sum of its proper divisors (55261058545).

203433631055 is a wasteful number, since it uses less digits than its factorization.

203433631055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173803.

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 203433631055 its reverse (550136334302), we get a palindrome (753569965357).

The spelling of 203433631055 in words is "two hundred three billion, four hundred thirty-three million, six hundred thirty-one thousand, fifty-five".