12903031 has 4 divisors (see below), whose sum is σ = 12910752. Its totient is φ = 12895312.

The previous prime is 12903029. The next prime is 12903041. The reversal of 12903031 is 13030921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12903031 - 2¹ = 12903029 is a prime.

It is a super-2 number, since 2×12903031² = 332976417973922, 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 (12903001) 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, 190 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (3227688).

Almost surely, 2^12903031 is an apocalyptic number.

12903031 is a deficient number, since it is larger than the sum of its proper divisors (7721).

12903031 is an equidigital number, since it uses as much as digits as its factorization.

12903031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7720.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 12903031 is about 3592.0789245227. The cubic root of 12903031 is about 234.5473768583.

Adding to 12903031 its reverse (13030921), we get a palindrome (25933952).

The spelling of 12903031 in words is "twelve million, nine hundred three thousand, thirty-one".