1042031210321 has 2 divisors, whose sum is σ = 1042031210322. Its totient is φ = 1042031210320.

The previous prime is 1042031210287. The next prime is 1042031210359. The reversal of 1042031210321 is 1230121302401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779309356225 + 262721854096 = 882785^2 + 512564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042031210321 - 2⁶ = 1042031210257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1042031210293 and 1042031210302.

It is not a weakly prime, because it can be changed into another prime (1042031210371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521015605160 + 521015605161.

It is an arithmetic number, because the mean of its divisors is an integer number (521015605161).

Almost surely, 2^{1042031210321} is an apocalyptic number.

It is an amenable number.

1042031210321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042031210321 is an equidigital number, since it uses as much as digits as its factorization.

1042031210321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1042031210321 its reverse (1230121302401), we get a palindrome (2272152512722).

The spelling of 1042031210321 in words is "one trillion, forty-two billion, thirty-one million, two hundred ten thousand, three hundred twenty-one".