13210803645461 has 2 divisors, whose sum is σ = 13210803645462. Its totient is φ = 13210803645460.

The previous prime is 13210803645421. The next prime is 13210803645467. The reversal of 13210803645461 is 16454630801231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11243152192561 + 1967651452900 = 3353081^2 + 1402730^2 .

It is a cyclic number.

It is not a de Polignac number, because 13210803645461 - 2³⁸ = 12935925738517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13210803645467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605401822730 + 6605401822731.

It is an arithmetic number, because the mean of its divisors is an integer number (6605401822731).

Almost surely, 2^{13210803645461} is an apocalyptic number.

It is an amenable number.

13210803645461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210803645461 is an equidigital number, since it uses as much as digits as its factorization.

13210803645461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 13210803645461 in words is "thirteen trillion, two hundred ten billion, eight hundred three million, six hundred forty-five thousand, four hundred sixty-one".