103018631 has 2 divisors, whose sum is σ = 103018632. Its totient is φ = 103018630.

The previous prime is 103018621. The next prime is 103018667. The reversal of 103018631 is 136810301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103018631 - 2⁶ = 103018567 is a prime.

It is a super-2 number, since 2×103018631² = 21225676666228322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103018597 and 103018606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103018621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51509315 + 51509316.

It is an arithmetic number, because the mean of its divisors is an integer number (51509316).

Almost surely, 2^103018631 is an apocalyptic number.

103018631 is a deficient number, since it is larger than the sum of its proper divisors (1).

103018631 is an equidigital number, since it uses as much as digits as its factorization.

103018631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 103018631 is about 10149.8094070776. The cubic root of 103018631 is about 468.7830763978.

Adding to 103018631 its reverse (136810301), we get a palindrome (239828932).

The spelling of 103018631 in words is "one hundred three million, eighteen thousand, six hundred thirty-one".