31124200103 has 2 divisors, whose sum is σ = 31124200104. Its totient is φ = 31124200102.

The previous prime is 31124200039. The next prime is 31124200147. The reversal of 31124200103 is 30100242113.

It is a strong prime.

It is an emirp because it is prime and its reverse (30100242113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31124200103 - 2⁶ = 31124200039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31124200183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15562100051 + 15562100052.

It is an arithmetic number, because the mean of its divisors is an integer number (15562100052).

Almost surely, 2^31124200103 is an apocalyptic number.

31124200103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31124200103 is an equidigital number, since it uses as much as digits as its factorization.

31124200103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31124200103 its reverse (30100242113), we get a palindrome (61224442216).

The spelling of 31124200103 in words is "thirty-one billion, one hundred twenty-four million, two hundred thousand, one hundred three".