303211400420 has 12 divisors (see below), whose sum is σ = 636743940924. Its totient is φ = 121284560160.

The previous prime is 303211400417. The next prime is 303211400473. The reversal of 303211400420 is 24004112303.

It can be written as a sum of positive squares in 2 ways, for example, as 144246520804 + 158964879616 = 379798^2 + 398704^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 15160570021 = 303211400420 / (3 + 0 + 3 + 2 + 1 + 1 + 4 + 0 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 303211400392 and 303211400401.

It is an unprimeable number.

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, 7580284991 + ... + 7580285030.

It is an arithmetic number, because the mean of its divisors is an integer number (53061995077).

Almost surely, 2^303211400420 is an apocalyptic number.

It is an amenable number.

303211400420 is an abundant number, since it is smaller than the sum of its proper divisors (333532540504).

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

303211400420 is a wasteful number, since it uses less digits than its factorization.

303211400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160570030 (or 15160570028 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 303211400420 its reverse (24004112303), we get a palindrome (327215512723).

The spelling of 303211400420 in words is "three hundred three billion, two hundred eleven million, four hundred thousand, four hundred twenty".