440121440332291 has 2 divisors, whose sum is σ = 440121440332292. Its totient is φ = 440121440332290.

The previous prime is 440121440332283. The next prime is 440121440332351. The reversal of 440121440332291 is 192233044121044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440121440332291 - 2³ = 440121440332283 is a prime.

It is not a weakly prime, because it can be changed into another prime (440121440332271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220060720166145 + 220060720166146.

It is an arithmetic number, because the mean of its divisors is an integer number (220060720166146).

Almost surely, 2^{440121440332291} is an apocalyptic number.

440121440332291 is a deficient number, since it is larger than the sum of its proper divisors (1).

440121440332291 is an equidigital number, since it uses as much as digits as its factorization.

440121440332291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 440121440332291 in words is "four hundred forty trillion, one hundred twenty-one billion, four hundred forty million, three hundred thirty-two thousand, two hundred ninety-one".