203103100321134 has 128 divisors (see below), whose sum is σ = 449723376885888. Its totient is φ = 60751378391040.

The previous prime is 203103100321127. The next prime is 203103100321157. The reversal of 203103100321134 is 431123001301302.

203103100321134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2507002812 + ... + 2507083824.

It is an arithmetic number, because the mean of its divisors is an integer number (3513463881921).

Almost surely, 2^{203103100321134} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203103100321134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224861688442944).

203103100321134 is an abundant number, since it is smaller than the sum of its proper divisors (246620276564754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203103100321134 is a wasteful number, since it uses less digits than its factorization.

203103100321134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83862.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 203103100321134 its reverse (431123001301302), we get a palindrome (634226101622436).

The spelling of 203103100321134 in words is "two hundred three trillion, one hundred three billion, one hundred million, three hundred twenty-one thousand, one hundred thirty-four".