20203134 has 64 divisors (see below), whose sum is σ = 48660480. Its totient is φ = 5470560.

The previous prime is 20203133. The next prime is 20203151. The reversal of 20203134 is 43130202.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76687 + ... + 76949.

It is an arithmetic number, because the mean of its divisors is an integer number (760320).

Almost surely, 2^20203134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20203134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24330240).

20203134 is an abundant number, since it is smaller than the sum of its proper divisors (28457346).

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

20203134 is a wasteful number, since it uses less digits than its factorization.

20203134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20203134 is about 4494.7896502506. The cubic root of 20203134 is about 272.3576519953.

Adding to 20203134 its reverse (43130202), we get a palindrome (63333336).

The spelling of 20203134 in words is "twenty million, two hundred three thousand, one hundred thirty-four".