20251754443013 has 2 divisors, whose sum is σ = 20251754443014. Its totient is φ = 20251754443012.

The previous prime is 20251754443001. The next prime is 20251754443021. The reversal of 20251754443013 is 31034445715202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20246778128164 + 4976314849 = 4499642^2 + 70543^2 .

It is a cyclic number.

It is not a de Polignac number, because 20251754443013 - 2¹² = 20251754438917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20251754443073) 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 as a sum of consecutive naturals, namely, 10125877221506 + 10125877221507.

It is an arithmetic number, because the mean of its divisors is an integer number (10125877221507).

Almost surely, 2^{20251754443013} is an apocalyptic number.

It is an amenable number.

20251754443013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251754443013 is an equidigital number, since it uses as much as digits as its factorization.

20251754443013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 20251754443013 in words is "twenty trillion, two hundred fifty-one billion, seven hundred fifty-four million, four hundred forty-three thousand, thirteen".