51303223211 has 4 divisors (see below), whose sum is σ = 51303684432. Its totient is φ = 51302761992.

The previous prime is 51303223201. The next prime is 51303223219. The reversal of 51303223211 is 11232230315.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51303223211 - 2¹⁴ = 51303206827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51303223219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50306 + ... + 324248.

It is an arithmetic number, because the mean of its divisors is an integer number (12825921108).

Almost surely, 2^51303223211 is an apocalyptic number.

51303223211 is a deficient number, since it is larger than the sum of its proper divisors (461221).

51303223211 is a wasteful number, since it uses less digits than its factorization.

51303223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461220.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 51303223211 its reverse (11232230315), we get a palindrome (62535453526).

The spelling of 51303223211 in words is "fifty-one billion, three hundred three million, two hundred twenty-three thousand, two hundred eleven".