31234234340039 has 2 divisors, whose sum is σ = 31234234340040. Its totient is φ = 31234234340038.

The previous prime is 31234234340033. The next prime is 31234234340059. The reversal of 31234234340039 is 93004343243213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31234234340039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31234234339978 and 31234234340005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31234234340033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15617117170019 + 15617117170020.

It is an arithmetic number, because the mean of its divisors is an integer number (15617117170020).

Almost surely, 2^{31234234340039} is an apocalyptic number.

31234234340039 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234234340039 is an equidigital number, since it uses as much as digits as its factorization.

31234234340039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 41.

The spelling of 31234234340039 in words is "thirty-one trillion, two hundred thirty-four billion, two hundred thirty-four million, three hundred forty thousand, thirty-nine".