20441345331 has 16 divisors (see below), whose sum is σ = 29800615680. Its totient is φ = 12360465120.

The previous prime is 20441345303. The next prime is 20441345357. The reversal of 20441345331 is 13354314402.

It is not a de Polignac number, because 20441345331 - 2²³ = 20432956723 is a prime.

It is a super-2 number, since 2×20441345331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20441345131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691020 + ... + 719993.

It is an arithmetic number, because the mean of its divisors is an integer number (1862538480).

Almost surely, 2^20441345331 is an apocalyptic number.

20441345331 is a deficient number, since it is larger than the sum of its proper divisors (9359270349).

20441345331 is a wasteful number, since it uses less digits than its factorization.

20441345331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411466.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20441345331 its reverse (13354314402), we get a palindrome (33795659733).

The spelling of 20441345331 in words is "twenty billion, four hundred forty-one million, three hundred forty-five thousand, three hundred thirty-one".