31838630147 has 2 divisors, whose sum is σ = 31838630148. Its totient is φ = 31838630146.

The previous prime is 31838630111. The next prime is 31838630167. The reversal of 31838630147 is 74103683813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31838630147 - 2⁸ = 31838629891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31838630098 and 31838630107.

It is not a weakly prime, because it can be changed into another prime (31838630107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15919315073 + 15919315074.

It is an arithmetic number, because the mean of its divisors is an integer number (15919315074).

Almost surely, 2^31838630147 is an apocalyptic number.

31838630147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31838630147 is an equidigital number, since it uses as much as digits as its factorization.

31838630147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 31838630147 in words is "thirty-one billion, eight hundred thirty-eight million, six hundred thirty thousand, one hundred forty-seven".