1042320044749 has 2 divisors, whose sum is σ = 1042320044750. Its totient is φ = 1042320044748.

The previous prime is 1042320044741. The next prime is 1042320044827. The reversal of 1042320044749 is 9474400232401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644878059849 + 397441984900 = 803043^2 + 630430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042320044749 - 2³ = 1042320044741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042320044741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521160022374 + 521160022375.

It is an arithmetic number, because the mean of its divisors is an integer number (521160022375).

Almost surely, 2^{1042320044749} is an apocalyptic number.

It is an amenable number.

1042320044749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042320044749 is an equidigital number, since it uses as much as digits as its factorization.

1042320044749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 1042320044749 in words is "one trillion, forty-two billion, three hundred twenty million, forty-four thousand, seven hundred forty-nine".