31844531908811 has 2 divisors, whose sum is σ = 31844531908812. Its totient is φ = 31844531908810.

The previous prime is 31844531908793. The next prime is 31844531908963. The reversal of 31844531908811 is 11880913544813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31844531908811 - 2³⁴ = 31827352039627 is a prime.

It is not a weakly prime, because it can be changed into another prime (31844531904811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15922265954405 + 15922265954406.

It is an arithmetic number, because the mean of its divisors is an integer number (15922265954406).

Almost surely, 2^{31844531908811} is an apocalyptic number.

31844531908811 is a deficient number, since it is larger than the sum of its proper divisors (1).

31844531908811 is an equidigital number, since it uses as much as digits as its factorization.

31844531908811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 31844531908811 in words is "thirty-one trillion, eight hundred forty-four billion, five hundred thirty-one million, nine hundred eight thousand, eight hundred eleven".