1103412521 has 2 divisors, whose sum is σ = 1103412522. Its totient is φ = 1103412520.

The previous prime is 1103412493. The next prime is 1103412533. The reversal of 1103412521 is 1252143011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 759829225 + 343583296 = 27565^2 + 18536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103412521 - 2¹⁴ = 1103396137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103412493 and 1103412502.

It is not a weakly prime, because it can be changed into another prime (1103412581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551706260 + 551706261.

It is an arithmetic number, because the mean of its divisors is an integer number (551706261).

Almost surely, 2^1103412521 is an apocalyptic number.

It is an amenable number.

1103412521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103412521 is an equidigital number, since it uses as much as digits as its factorization.

1103412521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1103412521 is about 33217.6537551947. The cubic root of 1103412521 is about 1033.3464915309.

Adding to 1103412521 its reverse (1252143011), we get a palindrome (2355555532).

The spelling of 1103412521 in words is "one billion, one hundred three million, four hundred twelve thousand, five hundred twenty-one".