13645055021011 has 2 divisors, whose sum is σ = 13645055021012. Its totient is φ = 13645055021010.

The previous prime is 13645055020973. The next prime is 13645055021023. The reversal of 13645055021011 is 11012055054631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13645055021011 - 2¹³ = 13645055012819 is a prime.

It is not a weakly prime, because it can be changed into another prime (13645055021041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6822527510505 + 6822527510506.

It is an arithmetic number, because the mean of its divisors is an integer number (6822527510506).

Almost surely, 2^{13645055021011} is an apocalyptic number.

13645055021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

13645055021011 is an equidigital number, since it uses as much as digits as its factorization.

13645055021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 13645055021011 in words is "thirteen trillion, six hundred forty-five billion, fifty-five million, twenty-one thousand, eleven".