30121131033305 has 8 divisors (see below), whose sum is σ = 38925769335432. Its totient is φ = 22243296763008.

The previous prime is 30121131033299. The next prime is 30121131033307. The reversal of 30121131033305 is 50333013112103.

It can be written as a sum of positive squares in 4 ways, for example, as 1351166785609 + 28769964247696 = 1162397^2 + 5363764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30121131033305 - 2³⁶ = 30052411556569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121131033307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231701007884 + ... + 231701008013.

It is an arithmetic number, because the mean of its divisors is an integer number (4865721166929).

Almost surely, 2^{30121131033305} is an apocalyptic number.

It is an amenable number.

30121131033305 is a deficient number, since it is larger than the sum of its proper divisors (8804638302127).

30121131033305 is a wasteful number, since it uses less digits than its factorization.

30121131033305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463402015915.

The product of its (nonzero) digits is 2430, while the sum is 26.

Adding to 30121131033305 its reverse (50333013112103), we get a palindrome (80454144145408).

The spelling of 30121131033305 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty-one million, thirty-three thousand, three hundred five".