20131241 has 16 divisors (see below), whose sum is σ = 23016000. Its totient is φ = 17454528.

The previous prime is 20131229. The next prime is 20131259. The reversal of 20131241 is 14213102.

It is not a de Polignac number, because 20131241 - 2²² = 15936937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36530 + ... + 37076.

It is an arithmetic number, because the mean of its divisors is an integer number (1438500).

Almost surely, 2^20131241 is an apocalyptic number.

It is an amenable number.

20131241 is a deficient number, since it is larger than the sum of its proper divisors (2884759).

20131241 is a wasteful number, since it uses less digits than its factorization.

20131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20131241 is about 4486.7851519769. The cubic root of 20131241 is about 272.0342057977.

Adding to 20131241 its reverse (14213102), we get a palindrome (34344343).

The spelling of 20131241 in words is "twenty million, one hundred thirty-one thousand, two hundred forty-one".