2013521542445 has 32 divisors (see below), whose sum is σ = 2802950965248. Its totient is φ = 1359930420288.

The previous prime is 2013521542433. The next prime is 2013521542499. The reversal of 2013521542445 is 5442451253102.

It is a cyclic number.

It is not a de Polignac number, because 2013521542445 - 2⁴ = 2013521542429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013521542399 and 2013521542408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21496784 + ... + 21590246.

It is an arithmetic number, because the mean of its divisors is an integer number (87592217664).

Almost surely, 2^{2013521542445} is an apocalyptic number.

It is an amenable number.

2013521542445 is a deficient number, since it is larger than the sum of its proper divisors (789429422803).

2013521542445 is an equidigital number, since it uses as much as digits as its factorization.

2013521542445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102729.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 2013521542445 its reverse (5442451253102), we get a palindrome (7455972795547).

The spelling of 2013521542445 in words is "two trillion, thirteen billion, five hundred twenty-one million, five hundred forty-two thousand, four hundred forty-five".