1331025103 has 2 divisors, whose sum is σ = 1331025104. Its totient is φ = 1331025102.

The previous prime is 1331025097. The next prime is 1331025131. The reversal of 1331025103 is 3015201331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331025103 - 2¹⁷ = 1330894031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331025403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665512551 + 665512552.

It is an arithmetic number, because the mean of its divisors is an integer number (665512552).

Almost surely, 2^1331025103 is an apocalyptic number.

1331025103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331025103 is an equidigital number, since it uses as much as digits as its factorization.

1331025103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1331025103 is about 36483.2167304365. The cubic root of 1331025103 is about 1100.0069153835.

Adding to 1331025103 its reverse (3015201331), we get a palindrome (4346226434).

The spelling of 1331025103 in words is "one billion, three hundred thirty-one million, twenty-five thousand, one hundred three".