20121144314 has 4 divisors (see below), whose sum is σ = 30181716474. Its totient is φ = 10060572156.

The previous prime is 20121144271. The next prime is 20121144361. The reversal of 20121144314 is 41344112102.

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

It can be written as a sum of positive squares in only one way, i.e., 15745983289 + 4375161025 = 125483^2 + 66145^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20121144314.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030286077 + ... + 5030286080.

Almost surely, 2^20121144314 is an apocalyptic number.

20121144314 is a deficient number, since it is larger than the sum of its proper divisors (10060572160).

20121144314 is a wasteful number, since it uses less digits than its factorization.

20121144314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060572159.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20121144314 its reverse (41344112102), we get a palindrome (61465256416).

The spelling of 20121144314 in words is "twenty billion, one hundred twenty-one million, one hundred forty-four thousand, three hundred fourteen".