31032145143449 has 2 divisors, whose sum is σ = 31032145143450. Its totient is φ = 31032145143448.

The previous prime is 31032145143413. The next prime is 31032145143509. The reversal of 31032145143449 is 94434154123013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30998526087424 + 33619056025 = 5567632^2 + 183355^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032145143449 - 2²⁰ = 31032144094873 is a prime.

It is not a weakly prime, because it can be changed into another prime (31032145143049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516072571724 + 15516072571725.

It is an arithmetic number, because the mean of its divisors is an integer number (15516072571725).

Almost surely, 2^{31032145143449} is an apocalyptic number.

It is an amenable number.

31032145143449 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032145143449 is an equidigital number, since it uses as much as digits as its factorization.

31032145143449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 31032145143449 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-three thousand, four hundred forty-nine".