103523452521 has 4 divisors (see below), whose sum is σ = 138031270032. Its totient is φ = 69015635012.

The previous prime is 103523452507. The next prime is 103523452561. The reversal of 103523452521 is 125254325301.

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 103523452521 - 2⁹ = 103523452009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103523452561) 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, 17253908751 + ... + 17253908756.

It is an arithmetic number, because the mean of its divisors is an integer number (34507817508).

Almost surely, 2^103523452521 is an apocalyptic number.

It is an amenable number.

103523452521 is a deficient number, since it is larger than the sum of its proper divisors (34507817511).

103523452521 is an equidigital number, since it uses as much as digits as its factorization.

103523452521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34507817510.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 103523452521 its reverse (125254325301), we get a palindrome (228777777822).

The spelling of 103523452521 in words is "one hundred three billion, five hundred twenty-three million, four hundred fifty-two thousand, five hundred twenty-one".