1000012120057 has 2 divisors, whose sum is σ = 1000012120058. Its totient is φ = 1000012120056.

The previous prime is 1000012119991. The next prime is 1000012120087. The reversal of 1000012120057 is 7500212100001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 855867367161 + 144144752896 = 925131^2 + 379664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000012120057 - 2¹⁵ = 1000012087289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000012120087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500006060028 + 500006060029.

It is an arithmetic number, because the mean of its divisors is an integer number (500006060029).

Almost surely, 2^{1000012120057} is an apocalyptic number.

It is an amenable number.

1000012120057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000012120057 is an equidigital number, since it uses as much as digits as its factorization.

1000012120057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 1000012120057 its reverse (7500212100001), we get a palindrome (8500224220058).

The spelling of 1000012120057 in words is "one trillion, twelve million, one hundred twenty thousand, fifty-seven".