31406103 has 8 divisors (see below), whose sum is σ = 46527600. Its totient is φ = 20937384.

The previous prime is 31406099. The next prime is 31406117. The reversal of 31406103 is 30160413.

It is not a de Polignac number, because 31406103 - 2² = 31406099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31406153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581568 + ... + 581621.

It is an arithmetic number, because the mean of its divisors is an integer number (5815950).

Almost surely, 2^31406103 is an apocalyptic number.

31406103 is a deficient number, since it is larger than the sum of its proper divisors (15121497).

31406103 is a wasteful number, since it uses less digits than its factorization.

31406103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163198 (or 1163192 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 31406103 is about 5604.1148275174. The cubic root of 31406103 is about 315.5038648046.

Adding to 31406103 its reverse (30160413), we get a palindrome (61566516).

The spelling of 31406103 in words is "thirty-one million, four hundred six thousand, one hundred three".