31310110123 has 2 divisors, whose sum is σ = 31310110124. Its totient is φ = 31310110122.

The previous prime is 31310110109. The next prime is 31310110129. The reversal of 31310110123 is 32101101313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31310110123 - 2¹³ = 31310101931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31310110097 and 31310110106.

It is not a weakly prime, because it can be changed into another prime (31310110129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655055061 + 15655055062.

It is an arithmetic number, because the mean of its divisors is an integer number (15655055062).

Almost surely, 2^31310110123 is an apocalyptic number.

31310110123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310110123 is an equidigital number, since it uses as much as digits as its factorization.

31310110123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31310110123 its reverse (32101101313), we get a palindrome (63411211436).

The spelling of 31310110123 in words is "thirty-one billion, three hundred ten million, one hundred ten thousand, one hundred twenty-three".