5120423051311 has 4 divisors (see below), whose sum is σ = 5389919001400. Its totient is φ = 4850927101224.

The previous prime is 5120423051299. The next prime is 5120423051357. The reversal of 5120423051311 is 1131503240215.

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

It is not a de Polignac number, because 5120423051311 - 2²³ = 5120414662703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5120423051311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120423651311) 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, 134747975016 + ... + 134747975053.

It is an arithmetic number, because the mean of its divisors is an integer number (1347479750350).

Almost surely, 2^{5120423051311} is an apocalyptic number.

5120423051311 is a deficient number, since it is larger than the sum of its proper divisors (269495950089).

5120423051311 is a wasteful number, since it uses less digits than its factorization.

5120423051311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269495950088.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 5120423051311 its reverse (1131503240215), we get a palindrome (6251926291526).

The spelling of 5120423051311 in words is "five trillion, one hundred twenty billion, four hundred twenty-three million, fifty-one thousand, three hundred eleven".