20103221134 has 4 divisors (see below), whose sum is σ = 30154831704. Its totient is φ = 10051610566.

The previous prime is 20103221113. The next prime is 20103221141. The reversal of 20103221134 is 43112230102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025805282 + ... + 5025805285.

It is an arithmetic number, because the mean of its divisors is an integer number (7538707926).

Almost surely, 2^20103221134 is an apocalyptic number.

20103221134 is a deficient number, since it is larger than the sum of its proper divisors (10051610570).

20103221134 is a wasteful number, since it uses less digits than its factorization.

20103221134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051610569.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20103221134 its reverse (43112230102), we get a palindrome (63215451236).

The spelling of 20103221134 in words is "twenty billion, one hundred three million, two hundred twenty-one thousand, one hundred thirty-four".