1103504531 has 2 divisors, whose sum is σ = 1103504532. Its totient is φ = 1103504530.

The previous prime is 1103504509. The next prime is 1103504581. The reversal of 1103504531 is 1354053011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103504531 is a prime.

It is a super-2 number, since 2×1103504531² = 2435444499875059922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103504497 and 1103504506.

It is not a weakly prime, because it can be changed into another prime (1103504581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551752265 + 551752266.

It is an arithmetic number, because the mean of its divisors is an integer number (551752266).

Almost surely, 2^1103504531 is an apocalyptic number.

1103504531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103504531 is an equidigital number, since it uses as much as digits as its factorization.

1103504531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1103504531 is about 33219.0386826591. The cubic root of 1103504531 is about 1033.3752132061.

Adding to 1103504531 its reverse (1354053011), we get a palindrome (2457557542).

The spelling of 1103504531 in words is "one billion, one hundred three million, five hundred four thousand, five hundred thirty-one".