213040331951 has 2 divisors, whose sum is σ = 213040331952. Its totient is φ = 213040331950.

The previous prime is 213040331941. The next prime is 213040332041. The reversal of 213040331951 is 159133040312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213040331951 - 2⁶ = 213040331887 is a prime.

It is a super-3 number, since 3×213040331951³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213040331941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106520165975 + 106520165976.

It is an arithmetic number, because the mean of its divisors is an integer number (106520165976).

Almost surely, 2^213040331951 is an apocalyptic number.

213040331951 is a deficient number, since it is larger than the sum of its proper divisors (1).

213040331951 is an equidigital number, since it uses as much as digits as its factorization.

213040331951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 213040331951 in words is "two hundred thirteen billion, forty million, three hundred thirty-one thousand, nine hundred fifty-one".