20131334 has 4 divisors (see below), whose sum is σ = 30197004. Its totient is φ = 10065666.

The previous prime is 20131313. The next prime is 20131339. The reversal of 20131334 is 43313102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5032832 + ... + 5032835.

It is an arithmetic number, because the mean of its divisors is an integer number (7549251).

Almost surely, 2^20131334 is an apocalyptic number.

20131334 is a deficient number, since it is larger than the sum of its proper divisors (10065670).

20131334 is a wasteful number, since it uses less digits than its factorization.

20131334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10065669.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 20131334 is about 4486.7955157328. The cubic root of 20131334 is about 272.0346247012.

Adding to 20131334 its reverse (43313102), we get a palindrome (63444436).

The spelling of 20131334 in words is "twenty million, one hundred thirty-one thousand, three hundred thirty-four".