21467745126313 has 2 divisors, whose sum is σ = 21467745126314. Its totient is φ = 21467745126312.

The previous prime is 21467745126307. The next prime is 21467745126319. The reversal of 21467745126313 is 31362154776412.

It is a balanced prime because it is at equal distance from previous prime (21467745126307) and next prime (21467745126319).

It can be written as a sum of positive squares in only one way, i.e., 13651487923264 + 7816257203049 = 3694792^2 + 2795757^2 .

It is a cyclic number.

It is not a de Polignac number, because 21467745126313 - 2⁵ = 21467745126281 is a prime.

It is not a weakly prime, because it can be changed into another prime (21467745126319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10733872563156 + 10733872563157.

It is an arithmetic number, because the mean of its divisors is an integer number (10733872563157).

Almost surely, 2^{21467745126313} is an apocalyptic number.

It is an amenable number.

21467745126313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21467745126313 is an equidigital number, since it uses as much as digits as its factorization.

21467745126313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 52.

The spelling of 21467745126313 in words is "twenty-one trillion, four hundred sixty-seven billion, seven hundred forty-five million, one hundred twenty-six thousand, three hundred thirteen".