311435421055 has 48 divisors (see below), whose sum is σ = 424293408000. Its totient is φ = 219059596800.

The previous prime is 311435421029. The next prime is 311435421103. The reversal of 311435421055 is 550124534113.

It is not a de Polignac number, because 311435421055 - 2¹³ = 311435412863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311435421055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39175221 + ... + 39183169.

It is an arithmetic number, because the mean of its divisors is an integer number (8839446000).

Almost surely, 2^311435421055 is an apocalyptic number.

311435421055 is a deficient number, since it is larger than the sum of its proper divisors (112857986945).

311435421055 is a wasteful number, since it uses less digits than its factorization.

311435421055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10096 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 311435421055 its reverse (550124534113), we get a palindrome (861559955168).

The spelling of 311435421055 in words is "three hundred eleven billion, four hundred thirty-five million, four hundred twenty-one thousand, fifty-five".