20014042444381 has 2 divisors, whose sum is σ = 20014042444382. Its totient is φ = 20014042444380.

The previous prime is 20014042444337. The next prime is 20014042444393. The reversal of 20014042444381 is 18344424041002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19642101027481 + 371941416900 = 4431941^2 + 609870^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014042444381 - 2⁹ = 20014042443869 is a prime.

It is a super-2 number, since 2×20014042444381² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20014042444381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20014042444301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007021222190 + 10007021222191.

It is an arithmetic number, because the mean of its divisors is an integer number (10007021222191).

Almost surely, 2^{20014042444381} is an apocalyptic number.

It is an amenable number.

20014042444381 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014042444381 is an equidigital number, since it uses as much as digits as its factorization.

20014042444381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 37.

Adding to 20014042444381 its reverse (18344424041002), we get a palindrome (38358466485383).

The spelling of 20014042444381 in words is "twenty trillion, fourteen billion, forty-two million, four hundred forty-four thousand, three hundred eighty-one".