304121535420 has 24 divisors (see below), whose sum is σ = 851540299344. Its totient is φ = 81099076096.

The previous prime is 304121535407. The next prime is 304121535451. The reversal of 304121535420 is 24535121403.

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

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, 2534346069 + ... + 2534346188.

It is an arithmetic number, because the mean of its divisors is an integer number (35480845806).

Almost surely, 2^304121535420 is an apocalyptic number.

304121535420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304121535420 is an abundant number, since it is smaller than the sum of its proper divisors (547418763924).

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

304121535420 is a wasteful number, since it uses less digits than its factorization.

304121535420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068692269 (or 5068692267 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 304121535420 its reverse (24535121403), we get a palindrome (328656656823).

The spelling of 304121535420 in words is "three hundred four billion, one hundred twenty-one million, five hundred thirty-five thousand, four hundred twenty".