211421401327 has 2 divisors, whose sum is σ = 211421401328. Its totient is φ = 211421401326.

The previous prime is 211421401309. The next prime is 211421401333. The reversal of 211421401327 is 723104124112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211421401327 - 2⁷ = 211421401199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211421401295 and 211421401304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211421401627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710700663 + 105710700664.

It is an arithmetic number, because the mean of its divisors is an integer number (105710700664).

Almost surely, 2^211421401327 is an apocalyptic number.

211421401327 is a deficient number, since it is larger than the sum of its proper divisors (1).

211421401327 is an equidigital number, since it uses as much as digits as its factorization.

211421401327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 211421401327 its reverse (723104124112), we get a palindrome (934525525439).

The spelling of 211421401327 in words is "two hundred eleven billion, four hundred twenty-one million, four hundred one thousand, three hundred twenty-seven".