103225052521 has 4 divisors (see below), whose sum is σ = 109297114452. Its totient is φ = 97152990592.

The previous prime is 103225052477. The next prime is 103225052537. The reversal of 103225052521 is 125250522301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125250522301 = 42209 ⋅2967389.

It can be written as a sum of positive squares in 2 ways, for example, as 74482597225 + 28742455296 = 272915^2 + 169536^2 .

It is a cyclic number.

It is not a de Polignac number, because 103225052521 - 2²⁵ = 103191498089 is a prime.

It is a super-2 number, since 2×103225052521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103225052521.

It is not an unprimeable number, because it can be changed into a prime (103225052551) 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, 3036030940 + ... + 3036030973.

It is an arithmetic number, because the mean of its divisors is an integer number (27324278613).

Almost surely, 2^103225052521 is an apocalyptic number.

It is an amenable number.

103225052521 is a deficient number, since it is larger than the sum of its proper divisors (6072061931).

103225052521 is an equidigital number, since it uses as much as digits as its factorization.

103225052521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072061930.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 103225052521 its reverse (125250522301), we get a palindrome (228475574822).

The spelling of 103225052521 in words is "one hundred three billion, two hundred twenty-five million, fifty-two thousand, five hundred twenty-one".