304323140121 has 96 divisors (see below), whose sum is σ = 569519653248. Its totient is φ = 141984783360.

The previous prime is 304323140117. The next prime is 304323140123. The reversal of 304323140121 is 121041323403.

It is a happy number.

It is not a de Polignac number, because 304323140121 - 2² = 304323140117 is a prime.

It is a super-2 number, since 2×304323140121² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304323140091 and 304323140100.

It is not an unprimeable number, because it can be changed into a prime (304323140123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 582141 + ... + 973413.

It is an arithmetic number, because the mean of its divisors is an integer number (5932496388).

Almost surely, 2^304323140121 is an apocalyptic number.

It is an amenable number.

304323140121 is a deficient number, since it is larger than the sum of its proper divisors (265196513127).

304323140121 is a wasteful number, since it uses less digits than its factorization.

304323140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391351 (or 391344 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 304323140121 its reverse (121041323403), we get a palindrome (425364463524).

It can be divided in two parts, 304323 and 140121, that added together give a palindrome (444444).

The spelling of 304323140121 in words is "three hundred four billion, three hundred twenty-three million, one hundred forty thousand, one hundred twenty-one".