306031144133 has 32 divisors (see below), whose sum is σ = 367301233152. Its totient is φ = 251264217600.

The previous prime is 306031144079. The next prime is 306031144207. The reversal of 306031144133 is 331441130603.

It is not a de Polignac number, because 306031144133 - 2¹⁶ = 306031078597 is a prime.

It is a super-2 number, since 2×306031144133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306031144096 and 306031144105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306031104133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29842835 + ... + 29853087.

It is an arithmetic number, because the mean of its divisors is an integer number (11478163536).

Almost surely, 2^306031144133 is an apocalyptic number.

It is an amenable number.

306031144133 is a deficient number, since it is larger than the sum of its proper divisors (61270089019).

306031144133 is a wasteful number, since it uses less digits than its factorization.

306031144133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14765.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 306031144133 its reverse (331441130603), we get a palindrome (637472274736).

The spelling of 306031144133 in words is "three hundred six billion, thirty-one million, one hundred forty-four thousand, one hundred thirty-three".