1103403997 has 2 divisors, whose sum is σ = 1103403998. Its totient is φ = 1103403996.

The previous prime is 1103403991. The next prime is 1103404061. The reversal of 1103403997 is 7993043011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1090914841 + 12489156 = 33029^2 + 3534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103403997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103403991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551701998 + 551701999.

It is an arithmetic number, because the mean of its divisors is an integer number (551701999).

Almost surely, 2^1103403997 is an apocalyptic number.

It is an amenable number.

1103403997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103403997 is an equidigital number, since it uses as much as digits as its factorization.

1103403997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1103403997 is about 33217.5254496779. The cubic root of 1103403997 is about 1033.3438306137.

The spelling of 1103403997 in words is "one billion, one hundred three million, four hundred three thousand, nine hundred ninety-seven".