103203031 has 4 divisors (see below), whose sum is σ = 105150312. Its totient is φ = 101255752.

The previous prime is 103203017. The next prime is 103203071. The reversal of 103203031 is 130302301.

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 103203031 - 2¹¹ = 103200983 is a prime.

It is a super-2 number, since 2×103203031² = 21301731215173922, 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 (103203011) 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 in 3 ways as a sum of consecutive naturals, for example, 973561 + ... + 973666.

It is an arithmetic number, because the mean of its divisors is an integer number (26287578).

Almost surely, 2^103203031 is an apocalyptic number.

103203031 is a deficient number, since it is larger than the sum of its proper divisors (1947281).

103203031 is an equidigital number, since it uses as much as digits as its factorization.

103203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947280.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 103203031 is about 10158.8892601504. The cubic root of 103203031 is about 469.0626118327.

Adding to 103203031 its reverse (130302301), we get a palindrome (233505332).

The spelling of 103203031 in words is "one hundred three million, two hundred three thousand, thirty-one".