16121311241 has 8 divisors (see below), whose sum is σ = 18503432064. Its totient is φ = 13758959520.

The previous prime is 16121311163. The next prime is 16121311253. The reversal of 16121311241 is 14211312161.

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 16121311241 - 2¹⁰ = 16121310217 is a prime.

It is a super-2 number, since 2×16121311241² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16121311441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4940525 + ... + 4943786.

It is an arithmetic number, because the mean of its divisors is an integer number (2312929008).

Almost surely, 2^16121311241 is an apocalyptic number.

It is an amenable number.

16121311241 is a deficient number, since it is larger than the sum of its proper divisors (2382120823).

16121311241 is an equidigital number, since it uses as much as digits as its factorization.

16121311241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9884551.

The product of its digits is 288, while the sum is 23.

The spelling of 16121311241 in words is "sixteen billion, one hundred twenty-one million, three hundred eleven thousand, two hundred forty-one".