1042042351057 has 2 divisors, whose sum is σ = 1042042351058. Its totient is φ = 1042042351056.

The previous prime is 1042042351003. The next prime is 1042042351061. The reversal of 1042042351057 is 7501532402401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 950642550081 + 91399800976 = 975009^2 + 302324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042042351057 - 2²³ = 1042033962449 is a prime.

It is a super-2 number, since 2×1042042351057² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1042042351087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521021175528 + 521021175529.

It is an arithmetic number, because the mean of its divisors is an integer number (521021175529).

Almost surely, 2^{1042042351057} is an apocalyptic number.

It is an amenable number.

1042042351057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042042351057 is an equidigital number, since it uses as much as digits as its factorization.

1042042351057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 1042042351057 its reverse (7501532402401), we get a palindrome (8543574753458).

The spelling of 1042042351057 in words is "one trillion, forty-two billion, forty-two million, three hundred fifty-one thousand, fifty-seven".