50000001311 has 16 divisors (see below), whose sum is σ = 54609528960. Its totient is φ = 45501281280.

The previous prime is 50000001301. The next prime is 50000001313. The reversal of 50000001311 is 11310000005.

It is not a de Polignac number, because 50000001311 - 2¹⁴ = 49999984927 is a prime.

It is a super-2 number, since 2×50000001311² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50000001292 and 50000001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50000001313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655001 + ... + 727341.

It is an arithmetic number, because the mean of its divisors is an integer number (3413095560).

Almost surely, 2^50000001311 is an apocalyptic number.

50000001311 is a deficient number, since it is larger than the sum of its proper divisors (4609527649).

50000001311 is a wasteful number, since it uses less digits than its factorization.

50000001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73106.

The product of its (nonzero) digits is 15, while the sum is 11.

Adding to 50000001311 its reverse (11310000005), we get a palindrome (61310001316).

The spelling of 50000001311 in words is "fifty billion, one thousand, three hundred eleven".