31055055113 has 2 divisors, whose sum is σ = 31055055114. Its totient is φ = 31055055112.

The previous prime is 31055055107. The next prime is 31055055121. The reversal of 31055055113 is 31155055013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29100265744 + 1954789369 = 170588^2 + 44213^2 .

It is an emirp because it is prime and its reverse (31155055013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31055055113 - 2³⁰ = 29981313289 is a prime.

It is not a weakly prime, because it can be changed into another prime (31055055173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527527556 + 15527527557.

It is an arithmetic number, because the mean of its divisors is an integer number (15527527557).

Almost surely, 2^31055055113 is an apocalyptic number.

It is an amenable number.

31055055113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31055055113 is an equidigital number, since it uses as much as digits as its factorization.

31055055113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5625, while the sum is 29.

The spelling of 31055055113 in words is "thirty-one billion, fifty-five million, fifty-five thousand, one hundred thirteen".