213119578031 has 2 divisors, whose sum is σ = 213119578032. Its totient is φ = 213119578030.

The previous prime is 213119578013. The next prime is 213119578037. The reversal of 213119578031 is 130875911312.

Together with previous prime (213119578013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213119578031 - 2¹⁴ = 213119561647 is a prime.

It is a super-2 number, since 2×213119578031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213119578031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213119578037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106559789015 + 106559789016.

It is an arithmetic number, because the mean of its divisors is an integer number (106559789016).

Almost surely, 2^213119578031 is an apocalyptic number.

213119578031 is a deficient number, since it is larger than the sum of its proper divisors (1).

213119578031 is an equidigital number, since it uses as much as digits as its factorization.

213119578031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 41.

The spelling of 213119578031 in words is "two hundred thirteen billion, one hundred nineteen million, five hundred seventy-eight thousand, thirty-one".