311214421534420 has 24 divisors (see below), whose sum is σ = 653551148371464. Its totient is φ = 124485604204416.

The previous prime is 311214421534403. The next prime is 311214421534433. The reversal of 311214421534420 is 24435124412113.

It can be written as a sum of positive squares in 4 ways, for example, as 182629979852356 + 128584441682064 = 13514066^2 + 11339508^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 311214421534420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5864742 + ... + 25628578.

It is an arithmetic number, because the mean of its divisors is an integer number (27231297848811).

Almost surely, 2^{311214421534420} is an apocalyptic number.

It is an amenable number.

311214421534420 is an abundant number, since it is smaller than the sum of its proper divisors (342336726837044).

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

311214421534420 is a wasteful number, since it uses less digits than its factorization.

311214421534420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20551179 (or 20551177 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 311214421534420 its reverse (24435124412113), we get a palindrome (335649545946533).

The spelling of 311214421534420 in words is "three hundred eleven trillion, two hundred fourteen billion, four hundred twenty-one million, five hundred thirty-four thousand, four hundred twenty".