20031423014 has 4 divisors (see below), whose sum is σ = 30047134524. Its totient is φ = 10015711506.

The previous prime is 20031422987. The next prime is 20031423019. The reversal of 20031423014 is 41032413002.

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 (20031423019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5007855752 + ... + 5007855755.

It is an arithmetic number, because the mean of its divisors is an integer number (7511783631).

Almost surely, 2^20031423014 is an apocalyptic number.

20031423014 is a deficient number, since it is larger than the sum of its proper divisors (10015711510).

20031423014 is a wasteful number, since it uses less digits than its factorization.

20031423014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015711509.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20031423014 its reverse (41032413002), we get a palindrome (61063836016).

The spelling of 20031423014 in words is "twenty billion, thirty-one million, four hundred twenty-three thousand, fourteen".