303121042242240 has 112 divisors (see below), whose sum is σ = 962432569099008. Its totient is φ = 80830324337664.

The previous prime is 303121042242229. The next prime is 303121042242247. The reversal of 303121042242240 is 42242240121303.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 303121042242198 and 303121042242207.

It is not an unprimeable number, because it can be changed into a prime (303121042242247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36144069 + ... + 43733691.

It is an arithmetic number, because the mean of its divisors is an integer number (8593147938384).

Almost surely, 2^{303121042242240} is an apocalyptic number.

303121042242240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303121042242240 is an abundant number, since it is smaller than the sum of its proper divisors (659311526856768).

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

303121042242240 is a wasteful number, since it uses less digits than its factorization.

303121042242240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7631246 (or 7631236 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 303121042242240 its reverse (42242240121303), we get a palindrome (345363282363543).

The spelling of 303121042242240 in words is "three hundred three trillion, one hundred twenty-one billion, forty-two million, two hundred forty-two thousand, two hundred forty".