51013135504211 has 4 divisors (see below), whose sum is σ = 51013370070024. Its totient is φ = 51012900938400.

The previous prime is 51013135504187. The next prime is 51013135504231. The reversal of 51013135504211 is 11240553131015.

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

It is a cyclic number.

It is not a de Polignac number, because 51013135504211 - 2⁶ = 51013135504147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51013135504231) 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, 116956385 + ... + 117391746.

It is an arithmetic number, because the mean of its divisors is an integer number (12753342517506).

Almost surely, 2^{51013135504211} is an apocalyptic number.

51013135504211 is a deficient number, since it is larger than the sum of its proper divisors (234565813).

51013135504211 is a wasteful number, since it uses less digits than its factorization.

51013135504211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234565812.

The product of its (nonzero) digits is 9000, while the sum is 32.

Adding to 51013135504211 its reverse (11240553131015), we get a palindrome (62253688635226).

The spelling of 51013135504211 in words is "fifty-one trillion, thirteen billion, one hundred thirty-five million, five hundred four thousand, two hundred eleven".