1103140427 has 2 divisors, whose sum is σ = 1103140428. Its totient is φ = 1103140426.

The previous prime is 1103140397. The next prime is 1103140453. The reversal of 1103140427 is 7240413011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103140427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103149427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551570213 + 551570214.

It is an arithmetic number, because the mean of its divisors is an integer number (551570214).

Almost surely, 2^1103140427 is an apocalyptic number.

1103140427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103140427 is an equidigital number, since it uses as much as digits as its factorization.

1103140427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1103140427 is about 33213.5578792757. The cubic root of 1103140427 is about 1033.2615458165.

Adding to 1103140427 its reverse (7240413011), we get a palindrome (8343553438).

The spelling of 1103140427 in words is "one billion, one hundred three million, one hundred forty thousand, four hundred twenty-seven".