31450103 has 2 divisors, whose sum is σ = 31450104. Its totient is φ = 31450102.

The previous prime is 31450099. The next prime is 31450117. The reversal of 31450103 is 30105413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31450103 - 2² = 31450099 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31450163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15725051 + 15725052.

It is an arithmetic number, because the mean of its divisors is an integer number (15725052).

Almost surely, 2^31450103 is an apocalyptic number.

31450103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31450103 is an equidigital number, since it uses as much as digits as its factorization.

31450103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 31450103 is about 5608.0391403770. The cubic root of 31450103 is about 315.6511365214.

Adding to 31450103 its reverse (30105413), we get a palindrome (61555516).

The spelling of 31450103 in words is "thirty-one million, four hundred fifty thousand, one hundred three".