303240134421 has 24 divisors (see below), whose sum is σ = 502792140864. Its totient is φ = 172516720320.

The previous prime is 303240134419. The next prime is 303240134437. The reversal of 303240134421 is 124431042303.

It is not a de Polignac number, because 303240134421 - 2¹ = 303240134419 is a prime.

It is a super-2 number, since 2×303240134421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303240134471) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10587760 + ... + 10616361.

It is an arithmetic number, because the mean of its divisors is an integer number (20949672536).

Almost surely, 2^303240134421 is an apocalyptic number.

It is an amenable number.

303240134421 is a deficient number, since it is larger than the sum of its proper divisors (199552006443).

303240134421 is a wasteful number, since it uses less digits than its factorization.

303240134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21204361 (or 21204358 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 303240134421 its reverse (124431042303), we get a palindrome (427671176724).

The spelling of 303240134421 in words is "three hundred three billion, two hundred forty million, one hundred thirty-four thousand, four hundred twenty-one".