213130306639 has 2 divisors, whose sum is σ = 213130306640. Its totient is φ = 213130306638.

The previous prime is 213130306619. The next prime is 213130306667. The reversal of 213130306639 is 936603031312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213130306639 - 2¹¹ = 213130304591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213130306598 and 213130306607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213130306619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106565153319 + 106565153320.

It is an arithmetic number, because the mean of its divisors is an integer number (106565153320).

Almost surely, 2^213130306639 is an apocalyptic number.

213130306639 is a deficient number, since it is larger than the sum of its proper divisors (1).

213130306639 is an equidigital number, since it uses as much as digits as its factorization.

213130306639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 37.

The spelling of 213130306639 in words is "two hundred thirteen billion, one hundred thirty million, three hundred six thousand, six hundred thirty-nine".