306397000003 has 4 divisors (see below), whose sum is σ = 306407504008. Its totient is φ = 306386496000.

The previous prime is 306396999991. The next prime is 306397000009. The reversal of 306397000003 is 300000793603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300000793603 = 7 ⋅42857256229.

It is a cyclic number.

It is not a de Polignac number, because 306397000003 - 2⁵ = 306396999971 is a prime.

It is a super-2 number, since 2×306397000003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306397000009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5208126 + ... + 5266627.

It is an arithmetic number, because the mean of its divisors is an integer number (76601876002).

Almost surely, 2^306397000003 is an apocalyptic number.

306397000003 is a deficient number, since it is larger than the sum of its proper divisors (10504005).

306397000003 is a wasteful number, since it uses less digits than its factorization.

306397000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504004.

The product of its (nonzero) digits is 10206, while the sum is 31.

Adding to 306397000003 its reverse (300000793603), we get a palindrome (606397793606).

The spelling of 306397000003 in words is "three hundred six billion, three hundred ninety-seven million, three", and thus it is an aban number.