1331038442273 has 2 divisors, whose sum is σ = 1331038442274. Its totient is φ = 1331038442272.

The previous prime is 1331038442263. The next prime is 1331038442317. The reversal of 1331038442273 is 3722448301331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 907357217809 + 423681224464 = 952553^2 + 650908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331038442273 - 2⁴ = 1331038442257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331038442273.

It is not a weakly prime, because it can be changed into another prime (1331038442203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665519221136 + 665519221137.

It is an arithmetic number, because the mean of its divisors is an integer number (665519221137).

Almost surely, 2^{1331038442273} is an apocalyptic number.

It is an amenable number.

1331038442273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331038442273 is an equidigital number, since it uses as much as digits as its factorization.

1331038442273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 1331038442273 in words is "one trillion, three hundred thirty-one billion, thirty-eight million, four hundred forty-two thousand, two hundred seventy-three".