211343500351 has 2 divisors, whose sum is σ = 211343500352. Its totient is φ = 211343500350.

The previous prime is 211343500301. The next prime is 211343500391. The reversal of 211343500351 is 153005343112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211343500351 - 2¹⁵ = 211343467583 is a prime.

It is a super-2 number, since 2×211343500351² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211343500301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105671750175 + 105671750176.

It is an arithmetic number, because the mean of its divisors is an integer number (105671750176).

Almost surely, 2^211343500351 is an apocalyptic number.

211343500351 is a deficient number, since it is larger than the sum of its proper divisors (1).

211343500351 is an equidigital number, since it uses as much as digits as its factorization.

211343500351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 211343500351 its reverse (153005343112), we get a palindrome (364348843463).

The spelling of 211343500351 in words is "two hundred eleven billion, three hundred forty-three million, five hundred thousand, three hundred fifty-one".