31130030123 has 2 divisors, whose sum is σ = 31130030124. Its totient is φ = 31130030122.

The previous prime is 31130030117. The next prime is 31130030153. The reversal of 31130030123 is 32103003113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31130030123 - 2⁶ = 31130030059 is a prime.

It is not a weakly prime, because it can be changed into another prime (31130030153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565015061 + 15565015062.

It is an arithmetic number, because the mean of its divisors is an integer number (15565015062).

Almost surely, 2^31130030123 is an apocalyptic number.

31130030123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130030123 is an equidigital number, since it uses as much as digits as its factorization.

31130030123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31130030123 its reverse (32103003113), we get a palindrome (63233033236).

The spelling of 31130030123 in words is "thirty-one billion, one hundred thirty million, thirty thousand, one hundred twenty-three".