305120031001 has 4 divisors (see below), whose sum is σ = 310877012772. Its totient is φ = 299363049232.

The previous prime is 305120030993. The next prime is 305120031067. The reversal of 305120031001 is 100130021503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100130021503 = 71 ⋅1410281993.

It can be written as a sum of positive squares in 2 ways, for example, as 200596494400 + 104523536601 = 447880^2 + 323301^2 .

It is a cyclic number.

It is not a de Polignac number, because 305120031001 - 2³ = 305120030993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305120031071) 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, 2878490806 + ... + 2878490911.

It is an arithmetic number, because the mean of its divisors is an integer number (77719253193).

Almost surely, 2^305120031001 is an apocalyptic number.

It is an amenable number.

305120031001 is a deficient number, since it is larger than the sum of its proper divisors (5756981771).

305120031001 is an equidigital number, since it uses as much as digits as its factorization.

305120031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756981770.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 305120031001 its reverse (100130021503), we get a palindrome (405250052504).

The spelling of 305120031001 in words is "three hundred five billion, one hundred twenty million, thirty-one thousand, one".