20331044413403 has 2 divisors, whose sum is σ = 20331044413404. Its totient is φ = 20331044413402.

The previous prime is 20331044413399. The next prime is 20331044413409. The reversal of 20331044413403 is 30431444013302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331044413403 - 2² = 20331044413399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20331044413403.

It is not a weakly prime, because it can be changed into another prime (20331044413409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165522206701 + 10165522206702.

It is an arithmetic number, because the mean of its divisors is an integer number (10165522206702).

Almost surely, 2^{20331044413403} is an apocalyptic number.

20331044413403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331044413403 is an equidigital number, since it uses as much as digits as its factorization.

20331044413403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 20331044413403 its reverse (30431444013302), we get a palindrome (50762488426705).

The spelling of 20331044413403 in words is "twenty trillion, three hundred thirty-one billion, forty-four million, four hundred thirteen thousand, four hundred three".