20344411003451 has 4 divisors (see below), whose sum is σ = 20344494440232. Its totient is φ = 20344327566672.

The previous prime is 20344411003447. The next prime is 20344411003489. The reversal of 20344411003451 is 15430011444302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20344411003451 - 2² = 20344411003447 is a prime.

It is a super-3 number, since 3×20344411003451³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20344411000451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41351570 + ... + 41840663.

It is an arithmetic number, because the mean of its divisors is an integer number (5086123610058).

Almost surely, 2^{20344411003451} is an apocalyptic number.

20344411003451 is a deficient number, since it is larger than the sum of its proper divisors (83436781).

20344411003451 is an equidigital number, since it uses as much as digits as its factorization.

20344411003451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83436780.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 20344411003451 its reverse (15430011444302), we get a palindrome (35774422447753).

The spelling of 20344411003451 in words is "twenty trillion, three hundred forty-four billion, four hundred eleven million, three thousand, four hundred fifty-one".