21200140327 has 2 divisors, whose sum is σ = 21200140328. Its totient is φ = 21200140326.

The previous prime is 21200140303. The next prime is 21200140331. The reversal of 21200140327 is 72304100212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21200140327 - 2²⁷ = 21065922599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21200140298 and 21200140307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21200140127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600070163 + 10600070164.

It is an arithmetic number, because the mean of its divisors is an integer number (10600070164).

Almost surely, 2^21200140327 is an apocalyptic number.

21200140327 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200140327 is an equidigital number, since it uses as much as digits as its factorization.

21200140327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 21200140327 its reverse (72304100212), we get a palindrome (93504240539).

The spelling of 21200140327 in words is "twenty-one billion, two hundred million, one hundred forty thousand, three hundred twenty-seven".