2020380881257 has 2 divisors, whose sum is σ = 2020380881258. Its totient is φ = 2020380881256.

The previous prime is 2020380881149. The next prime is 2020380881287. The reversal of 2020380881257 is 7521880830202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1234612099161 + 785768782096 = 1111131^2 + 886436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020380881257 - 2³⁹ = 1470625067369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020380881287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010190440628 + 1010190440629.

It is an arithmetic number, because the mean of its divisors is an integer number (1010190440629).

Almost surely, 2^{2020380881257} is an apocalyptic number.

It is an amenable number.

2020380881257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020380881257 is an equidigital number, since it uses as much as digits as its factorization.

2020380881257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 2020380881257 in words is "two trillion, twenty billion, three hundred eighty million, eight hundred eighty-one thousand, two hundred fifty-seven".