1031031103 has 2 divisors, whose sum is σ = 1031031104. Its totient is φ = 1031031102.

The previous prime is 1031031073. The next prime is 1031031107. The reversal of 1031031103 is 3011301301.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3011301301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031031103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031031107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515515551 + 515515552.

It is an arithmetic number, because the mean of its divisors is an integer number (515515552).

Almost surely, 2^1031031103 is an apocalyptic number.

1031031103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031031103 is an equidigital number, since it uses as much as digits as its factorization.

1031031103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1031031103 is about 32109.6730441155. The cubic root of 1031031103 is about 1010.2385160311.

Adding to 1031031103 its reverse (3011301301), we get a palindrome (4042332404).

The spelling of 1031031103 in words is "one billion, thirty-one million, thirty-one thousand, one hundred three".