103330211145521 has 4 divisors (see below), whose sum is σ = 103330265689200. Its totient is φ = 103330156601844.

The previous prime is 103330211145503. The next prime is 103330211145593. The reversal of 103330211145521 is 125541112033301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103330211145521 - 2¹⁸ = 103330210883377 is a prime.

It is a super-2 number, since 2×103330211145521² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103330211195521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24323951 + ... + 28254468.

It is an arithmetic number, because the mean of its divisors is an integer number (25832566422300).

Almost surely, 2^{103330211145521} is an apocalyptic number.

It is an amenable number.

103330211145521 is a deficient number, since it is larger than the sum of its proper divisors (54543679).

103330211145521 is an equidigital number, since it uses as much as digits as its factorization.

103330211145521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54543678.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 103330211145521 its reverse (125541112033301), we get a palindrome (228871323178822).

The spelling of 103330211145521 in words is "one hundred three trillion, three hundred thirty billion, two hundred eleven million, one hundred forty-five thousand, five hundred twenty-one".