51351302011 has 4 divisors (see below), whose sum is σ = 51352438024. Its totient is φ = 51350166000.

The previous prime is 51351301973. The next prime is 51351302027. The reversal of 51351302011 is 11020315315.

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 51351302011 - 2⁹ = 51351301499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51351302411) 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, 497265 + ... + 591586.

It is an arithmetic number, because the mean of its divisors is an integer number (12838109506).

Almost surely, 2^51351302011 is an apocalyptic number.

51351302011 is a deficient number, since it is larger than the sum of its proper divisors (1136013).

51351302011 is a wasteful number, since it uses less digits than its factorization.

51351302011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136012.

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 51351302011 its reverse (11020315315), we get a palindrome (62371617326).

The spelling of 51351302011 in words is "fifty-one billion, three hundred fifty-one million, three hundred two thousand, eleven".