311200355413 has 4 divisors (see below), whose sum is σ = 311704732620. Its totient is φ = 310695978208.

The previous prime is 311200355383. The next prime is 311200355509. The reversal of 311200355413 is 314553002113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314553002113 = 7 ⋅44936143159.

It can be written as a sum of positive squares in 2 ways, for example, as 57610560484 + 253589794929 = 240022^2 + 503577^2 .

It is a cyclic number.

It is not a de Polignac number, because 311200355413 - 2³⁷ = 173761401941 is a prime.

It is a super-2 number, since 2×311200355413² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311200352413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252187678 + ... + 252188911.

It is an arithmetic number, because the mean of its divisors is an integer number (77926183155).

Almost surely, 2^311200355413 is an apocalyptic number.

It is an amenable number.

311200355413 is a deficient number, since it is larger than the sum of its proper divisors (504377207).

311200355413 is an equidigital number, since it uses as much as digits as its factorization.

311200355413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504377206.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 311200355413 its reverse (314553002113), we get a palindrome (625753357526).

The spelling of 311200355413 in words is "three hundred eleven billion, two hundred million, three hundred fifty-five thousand, four hundred thirteen".