31234118329 has 2 divisors, whose sum is σ = 31234118330. Its totient is φ = 31234118328.

The previous prime is 31234118281. The next prime is 31234118341. The reversal of 31234118329 is 92381143213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17049308329 + 14184810000 = 130573^2 + 119100^2 .

It is an emirp because it is prime and its reverse (92381143213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31234118329 is a prime.

It is not a weakly prime, because it can be changed into another prime (31234118359) 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, 15617059164 + 15617059165.

It is an arithmetic number, because the mean of its divisors is an integer number (15617059165).

Almost surely, 2^31234118329 is an apocalyptic number.

It is an amenable number.

31234118329 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234118329 is an equidigital number, since it uses as much as digits as its factorization.

31234118329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The spelling of 31234118329 in words is "thirty-one billion, two hundred thirty-four million, one hundred eighteen thousand, three hundred twenty-nine".