20331103544 has 16 divisors (see below), whose sum is σ = 39435330600. Its totient is φ = 9815015392.

The previous prime is 20331103543. The next prime is 20331103547. The reversal of 20331103544 is 44530113302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331103543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43816802 + ... + 43817265.

Almost surely, 2^20331103544 is an apocalyptic number.

It is an amenable number.

20331103544 is a deficient number, since it is larger than the sum of its proper divisors (19104227056).

20331103544 is a wasteful number, since it uses less digits than its factorization.

20331103544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87634102 (or 87634098 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20331103544 its reverse (44530113302), we get a palindrome (64861216846).

The spelling of 20331103544 in words is "twenty billion, three hundred thirty-one million, one hundred three thousand, five hundred forty-four".