228121511413 has 8 divisors (see below), whose sum is σ = 233724291840. Its totient is φ = 222549944880.

The previous prime is 228121511339. The next prime is 228121511461. The reversal of 228121511413 is 314115121822.

228121511413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228121511413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228121511483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7788678 + ... + 7817911.

It is an arithmetic number, because the mean of its divisors is an integer number (29215536480).

Almost surely, 2^228121511413 is an apocalyptic number.

It is an amenable number.

228121511413 is a deficient number, since it is larger than the sum of its proper divisors (5602780427).

228121511413 is a wasteful number, since it uses less digits than its factorization.

228121511413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15606947.

The product of its digits is 3840, while the sum is 31.

The spelling of 228121511413 in words is "two hundred twenty-eight billion, one hundred twenty-one million, five hundred eleven thousand, four hundred thirteen".