103243031 has 4 divisors (see below), whose sum is σ = 103275600. Its totient is φ = 103210464.

The previous prime is 103243027. The next prime is 103243037. The reversal of 103243031 is 130342301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103243031 - 2² = 103243027 is a prime.

It is a super-2 number, since 2×103243031² = 21318246900133922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103243037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10946 + ... + 18063.

It is an arithmetic number, because the mean of its divisors is an integer number (25818900).

Almost surely, 2^103243031 is an apocalyptic number.

103243031 is a deficient number, since it is larger than the sum of its proper divisors (32569).

103243031 is an equidigital number, since it uses as much as digits as its factorization.

103243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32568.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103243031 is about 10160.8577885925. The cubic root of 103243031 is about 469.1232046298.

Adding to 103243031 its reverse (130342301), we get a palindrome (233585332).

The spelling of 103243031 in words is "one hundred three million, two hundred forty-three thousand, thirty-one".