20331312441 has 16 divisors (see below), whose sum is σ = 29712983808. Its totient is φ = 12263605200.

The previous prime is 20331312439. The next prime is 20331312479. The reversal of 20331312441 is 14421313302.

It is a happy number.

It is not a de Polignac number, because 20331312441 - 2¹ = 20331312439 is a prime.

It is a super-2 number, since 2×20331312441² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20331312481) 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, 1452991 + ... + 1466916.

It is an arithmetic number, because the mean of its divisors is an integer number (1857061488).

Almost surely, 2^20331312441 is an apocalyptic number.

It is an amenable number.

20331312441 is a deficient number, since it is larger than the sum of its proper divisors (9381671367).

20331312441 is a wasteful number, since it uses less digits than its factorization.

20331312441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920132.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20331312441 its reverse (14421313302), we get a palindrome (34752625743).

The spelling of 20331312441 in words is "twenty billion, three hundred thirty-one million, three hundred twelve thousand, four hundred forty-one".