20111241 has 8 divisors (see below), whose sum is σ = 27116640. Its totient is φ = 13256672.

The previous prime is 20111213. The next prime is 20111243. The reversal of 20111241 is 14211102.

It is a happy number.

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 20111241 - 2¹⁰ = 20110217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111243) 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, 37395 + ... + 37928.

It is an arithmetic number, because the mean of its divisors is an integer number (3389580).

Almost surely, 2^20111241 is an apocalyptic number.

It is an amenable number.

20111241 is a deficient number, since it is larger than the sum of its proper divisors (7005399).

20111241 is an equidigital number, since it uses as much as digits as its factorization.

20111241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75415.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 20111241 is about 4484.5558308488. Note that the first 3 decimals coincide. The cubic root of 20111241 is about 271.9440890342.

Adding to 20111241 its reverse (14211102), we get a palindrome (34322343).

The spelling of 20111241 in words is "twenty million, one hundred eleven thousand, two hundred forty-one".