210131231039 has 2 divisors, whose sum is σ = 210131231040. Its totient is φ = 210131231038.

The previous prime is 210131231021. The next prime is 210131231053. The reversal of 210131231039 is 930132131012.

210131231039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210131231039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210131230999 and 210131231017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210131231059) 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, 105065615519 + 105065615520.

It is an arithmetic number, because the mean of its divisors is an integer number (105065615520).

Almost surely, 2^210131231039 is an apocalyptic number.

210131231039 is a deficient number, since it is larger than the sum of its proper divisors (1).

210131231039 is an equidigital number, since it uses as much as digits as its factorization.

210131231039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 210131231039 in words is "two hundred ten billion, one hundred thirty-one million, two hundred thirty-one thousand, thirty-nine".