1100012010257 has 2 divisors, whose sum is σ = 1100012010258. Its totient is φ = 1100012010256.

The previous prime is 1100012010203. The next prime is 1100012010277. The reversal of 1100012010257 is 7520102100011.

It is a happy number.

It is an a-pointer prime, because the next prime (1100012010277) can be obtained adding 1100012010257 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091625846481 + 8386163776 = 1044809^2 + 91576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100012010257 - 2⁶ = 1100012010193 is a prime.

It is a super-3 number, since 3×1100012010257³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1100012010277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550006005128 + 550006005129.

It is an arithmetic number, because the mean of its divisors is an integer number (550006005129).

Almost surely, 2^{1100012010257} is an apocalyptic number.

It is an amenable number.

1100012010257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100012010257 is an equidigital number, since it uses as much as digits as its factorization.

1100012010257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

Adding to 1100012010257 its reverse (7520102100011), we get a palindrome (8620114110268).

The spelling of 1100012010257 in words is "one trillion, one hundred billion, twelve million, ten thousand, two hundred fifty-seven".