304313040731 has 24 divisors (see below), whose sum is σ = 368768695680. Its totient is φ = 250109596800.

The previous prime is 304313040697. The next prime is 304313040763. The reversal of 304313040731 is 137040313403.

It is not a de Polignac number, because 304313040731 - 2¹⁰ = 304313039707 is a prime.

It is a super-2 number, since 2×304313040731² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304313040694 and 304313040703.

It is not an unprimeable number, because it can be changed into a prime (304313040131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 753410 + ... + 1084551.

It is an arithmetic number, because the mean of its divisors is an integer number (15365362320).

Almost surely, 2^304313040731 is an apocalyptic number.

304313040731 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

304313040731 is a deficient number, since it is larger than the sum of its proper divisors (64455654949).

304313040731 is a wasteful number, since it uses less digits than its factorization.

304313040731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838115 (or 1838108 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The spelling of 304313040731 in words is "three hundred four billion, three hundred thirteen million, forty thousand, seven hundred thirty-one".