203130420135 has 64 divisors (see below), whose sum is σ = 339897643008. Its totient is φ = 103493458944.

The previous prime is 203130420113. The next prime is 203130420149. The reversal of 203130420135 is 531024031302.

It is not a de Polignac number, because 203130420135 - 2⁶ = 203130420071 is a prime.

It is a super-2 number, since 2×203130420135² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9023604 + ... + 9046086.

It is an arithmetic number, because the mean of its divisors is an integer number (5310900672).

Almost surely, 2^203130420135 is an apocalyptic number.

203130420135 is a deficient number, since it is larger than the sum of its proper divisors (136767222873).

203130420135 is a wasteful number, since it uses less digits than its factorization.

203130420135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 203130420135 its reverse (531024031302), we get a palindrome (734154451437).

The spelling of 203130420135 in words is "two hundred three billion, one hundred thirty million, four hundred twenty thousand, one hundred thirty-five".