303212122320 has 160 divisors (see below), whose sum is σ = 961237476864. Its totient is φ = 79037337600.

The previous prime is 303212122303. The next prime is 303212122333. The reversal of 303212122320 is 23221212303.

It is a happy number.

It is a super-2 number, since 2×303212122320² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3403140 + ... + 3491100.

Almost surely, 2^303212122320 is an apocalyptic number.

303212122320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303212122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480618738432).

303212122320 is an abundant number, since it is smaller than the sum of its proper divisors (658025354544).

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

303212122320 is a wasteful number, since it uses less digits than its factorization.

303212122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88301 (or 88295 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 303212122320 its reverse (23221212303), we get a palindrome (326433334623).

The spelling of 303212122320 in words is "three hundred three billion, two hundred twelve million, one hundred twenty-two thousand, three hundred twenty".