21152361133291 has 2 divisors, whose sum is σ = 21152361133292. Its totient is φ = 21152361133290.

The previous prime is 21152361133279. The next prime is 21152361133339. The reversal of 21152361133291 is 19233116325112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21152361133291 - 2⁵ = 21152361133259 is a prime.

It is not a weakly prime, because it can be changed into another prime (21152361133391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10576180566645 + 10576180566646.

It is an arithmetic number, because the mean of its divisors is an integer number (10576180566646).

Almost surely, 2^{21152361133291} is an apocalyptic number.

21152361133291 is a deficient number, since it is larger than the sum of its proper divisors (1).

21152361133291 is an equidigital number, since it uses as much as digits as its factorization.

21152361133291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The spelling of 21152361133291 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred sixty-one million, one hundred thirty-three thousand, two hundred ninety-one".