20103133134 has 32 divisors (see below), whose sum is σ = 45967228416. Its totient is φ = 5741601120.

The previous prime is 20103133133. The next prime is 20103133159. The reversal of 20103133134 is 43133130102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20103133134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103133133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25584 + ... + 202140.

It is an arithmetic number, because the mean of its divisors is an integer number (1436475888).

Almost surely, 2^20103133134 is an apocalyptic number.

20103133134 is an abundant number, since it is smaller than the sum of its proper divisors (25864095282).

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

20103133134 is a wasteful number, since it uses less digits than its factorization.

20103133134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179280.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20103133134 its reverse (43133130102), we get a palindrome (63236263236).

The spelling of 20103133134 in words is "twenty billion, one hundred three million, one hundred thirty-three thousand, one hundred thirty-four".