311313433303420 has 24 divisors (see below), whose sum is σ = 676301596488000. Its totient is φ = 120231394930752.

The previous prime is 311313433303337. The next prime is 311313433303423. The reversal of 311313433303420 is 24303334313113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311313433303423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268373648820 + ... + 268373649979.

It is an arithmetic number, because the mean of its divisors is an integer number (28179233187000).

Almost surely, 2^{311313433303420} is an apocalyptic number.

It is an amenable number.

311313433303420 is an abundant number, since it is smaller than the sum of its proper divisors (364988163184580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311313433303420 is a wasteful number, since it uses less digits than its factorization.

311313433303420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536747298837 (or 536747298835 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 34.

Adding to 311313433303420 its reverse (24303334313113), we get a palindrome (335616767616533).

The spelling of 311313433303420 in words is "three hundred eleven trillion, three hundred thirteen billion, four hundred thirty-three million, three hundred three thousand, four hundred twenty".