103242431 has 4 divisors (see below), whose sum is σ = 106572864. Its totient is φ = 99912000.

The previous prime is 103242427. The next prime is 103242467. The reversal of 103242431 is 134242301.

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 103242431 - 2² = 103242427 is a prime.

It is a super-2 number, since 2×103242431² = 21317999117579522, 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 (103242031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665170 + ... + 1665231.

It is an arithmetic number, because the mean of its divisors is an integer number (26643216).

Almost surely, 2^103242431 is an apocalyptic number.

103242431 is a deficient number, since it is larger than the sum of its proper divisors (3330433).

103242431 is an equidigital number, since it uses as much as digits as its factorization.

103242431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330432.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 103242431 is about 10160.8282634832. The cubic root of 103242431 is about 469.1222958535.

Adding to 103242431 its reverse (134242301), we get a palindrome (237484732).

The spelling of 103242431 in words is "one hundred three million, two hundred forty-two thousand, four hundred thirty-one".