3445102113521 has 4 divisors (see below), whose sum is σ = 3538212981492. Its totient is φ = 3351991245552.

The previous prime is 3445102113493. The next prime is 3445102113539. The reversal of 3445102113521 is 1253112015443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2925929986225 + 519172127296 = 1710535^2 + 720536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3445102113521 is a prime.

It is a super-2 number, since 2×3445102113521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3445102113221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46555433930 + ... + 46555434003.

It is an arithmetic number, because the mean of its divisors is an integer number (884553245373).

Almost surely, 2^{3445102113521} is an apocalyptic number.

It is an amenable number.

3445102113521 is a deficient number, since it is larger than the sum of its proper divisors (93110867971).

3445102113521 is an equidigital number, since it uses as much as digits as its factorization.

3445102113521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93110867970.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 3445102113521 its reverse (1253112015443), we get a palindrome (4698214128964).

The spelling of 3445102113521 in words is "three trillion, four hundred forty-five billion, one hundred two million, one hundred thirteen thousand, five hundred twenty-one".