20441131 has 8 divisors (see below), whose sum is σ = 22099280. Its totient is φ = 18841248.

The previous prime is 20441129. The next prime is 20441137. The reversal of 20441131 is 13114402.

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 20441131 - 2¹ = 20441129 is a prime.

It is a super-2 number, since 2×20441131² = 835679673118322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20441137) 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, 13836 + ... + 15241.

It is an arithmetic number, because the mean of its divisors is an integer number (2762410).

Almost surely, 2^20441131 is an apocalyptic number.

20441131 is a deficient number, since it is larger than the sum of its proper divisors (1658149).

20441131 is a wasteful number, since it uses less digits than its factorization.

20441131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29133.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20441131 is about 4521.1869016885. The cubic root of 20441131 is about 273.4229557717.

Adding to 20441131 its reverse (13114402), we get a palindrome (33555533).

The spelling of 20441131 in words is "twenty million, four hundred forty-one thousand, one hundred thirty-one".