211231210039 has 2 divisors, whose sum is σ = 211231210040. Its totient is φ = 211231210038.

The previous prime is 211231209991. The next prime is 211231210063. The reversal of 211231210039 is 930012132112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211231210039 - 2⁷ = 211231209911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211231209995 and 211231210022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211231210639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615605019 + 105615605020.

It is an arithmetic number, because the mean of its divisors is an integer number (105615605020).

Almost surely, 2^211231210039 is an apocalyptic number.

211231210039 is a deficient number, since it is larger than the sum of its proper divisors (1).

211231210039 is an equidigital number, since it uses as much as digits as its factorization.

211231210039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 211231210039 in words is "two hundred eleven billion, two hundred thirty-one million, two hundred ten thousand, thirty-nine".