31445445443089 has 2 divisors, whose sum is σ = 31445445443090. Its totient is φ = 31445445443088.

The previous prime is 31445445443039. The next prime is 31445445443101. The reversal of 31445445443089 is 98034454454413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29096530574400 + 2348914868689 = 5394120^2 + 1532617^2 .

It is a cyclic number.

It is not a de Polignac number, because 31445445443089 - 2⁹ = 31445445442577 is a prime.

It is a super-2 number, since 2×31445445443089² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31445445443039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15722722721544 + 15722722721545.

It is an arithmetic number, because the mean of its divisors is an integer number (15722722721545).

Almost surely, 2^{31445445443089} is an apocalyptic number.

It is an amenable number.

31445445443089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31445445443089 is an equidigital number, since it uses as much as digits as its factorization.

31445445443089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66355200, while the sum is 58.

The spelling of 31445445443089 in words is "thirty-one trillion, four hundred forty-five billion, four hundred forty-five million, four hundred forty-three thousand, eighty-nine".