215120455400353 has 2 divisors, whose sum is σ = 215120455400354. Its totient is φ = 215120455400352.

The previous prime is 215120455400309. The next prime is 215120455400503. The reversal of 215120455400353 is 353004554021512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168627053979904 + 46493401420449 = 12985648^2 + 6818607^2 .

It is a cyclic number.

It is not a de Polignac number, because 215120455400353 - 2⁹ = 215120455399841 is a prime.

It is not a weakly prime, because it can be changed into another prime (215120455400303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107560227700176 + 107560227700177.

It is an arithmetic number, because the mean of its divisors is an integer number (107560227700177).

Almost surely, 2^{215120455400353} is an apocalyptic number.

It is an amenable number.

215120455400353 is a deficient number, since it is larger than the sum of its proper divisors (1).

215120455400353 is an equidigital number, since it uses as much as digits as its factorization.

215120455400353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 215120455400353 in words is "two hundred fifteen trillion, one hundred twenty billion, four hundred fifty-five million, four hundred thousand, three hundred fifty-three".