1042312112549 has 2 divisors, whose sum is σ = 1042312112550. Its totient is φ = 1042312112548.

The previous prime is 1042312112509. The next prime is 1042312112561. The reversal of 1042312112549 is 9452112132401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668049579649 + 374262532900 = 817343^2 + 611770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042312112549 - 2¹⁶ = 1042312047013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042312112509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521156056274 + 521156056275.

It is an arithmetic number, because the mean of its divisors is an integer number (521156056275).

Almost surely, 2^{1042312112549} is an apocalyptic number.

It is an amenable number.

1042312112549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042312112549 is an equidigital number, since it uses as much as digits as its factorization.

1042312112549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 1042312112549 in words is "one trillion, forty-two billion, three hundred twelve million, one hundred twelve thousand, five hundred forty-nine".