10212578398013 has 2 divisors, whose sum is σ = 10212578398014. Its totient is φ = 10212578398012.

The previous prime is 10212578397991. The next prime is 10212578398063. The reversal of 10212578398013 is 31089387521201.

It is an a-pointer prime, because the next prime (10212578398063) can be obtained adding 10212578398013 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10120879656889 + 91698741124 = 3181333^2 + 302818^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212578398013 - 2¹⁰ = 10212578396989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212578398063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106289199006 + 5106289199007.

It is an arithmetic number, because the mean of its divisors is an integer number (5106289199007).

Almost surely, 2^{10212578398013} is an apocalyptic number.

It is an amenable number.

10212578398013 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212578398013 is an equidigital number, since it uses as much as digits as its factorization.

10212578398013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 10212578398013 in words is "ten trillion, two hundred twelve billion, five hundred seventy-eight million, three hundred ninety-eight thousand, thirteen".