1103553403 has 2 divisors, whose sum is σ = 1103553404. Its totient is φ = 1103553402.

The previous prime is 1103553389. The next prime is 1103553413. The reversal of 1103553403 is 3043553011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103553403 is a prime.

It is a super-2 number, since 2×1103553403² = 2435660226545760818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1103553413) 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 as a sum of consecutive naturals, namely, 551776701 + 551776702.

It is an arithmetic number, because the mean of its divisors is an integer number (551776702).

Almost surely, 2^1103553403 is an apocalyptic number.

1103553403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103553403 is an equidigital number, since it uses as much as digits as its factorization.

1103553403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1103553403 is about 33219.7742767768. The cubic root of 1103553403 is about 1033.3904683520.

The spelling of 1103553403 in words is "one billion, one hundred three million, five hundred fifty-three thousand, four hundred three".