31301020103 has 2 divisors, whose sum is σ = 31301020104. Its totient is φ = 31301020102.

The previous prime is 31301020073. The next prime is 31301020117. The reversal of 31301020103 is 30102010313.

It is an a-pointer prime, because the next prime (31301020117) can be obtained adding 31301020103 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31301020103 - 2⁶ = 31301020039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31301020123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650510051 + 15650510052.

It is an arithmetic number, because the mean of its divisors is an integer number (15650510052).

Almost surely, 2^31301020103 is an apocalyptic number.

31301020103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301020103 is an equidigital number, since it uses as much as digits as its factorization.

31301020103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31301020103 its reverse (30102010313), we get a palindrome (61403030416).

The spelling of 31301020103 in words is "thirty-one billion, three hundred one million, twenty thousand, one hundred three".