402430140271 has 2 divisors, whose sum is σ = 402430140272. Its totient is φ = 402430140270.

The previous prime is 402430140269. The next prime is 402430140341. The reversal of 402430140271 is 172041034204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402430140271 - 2¹ = 402430140269 is a prime.

Together with 402430140269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402430140251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201215070135 + 201215070136.

It is an arithmetic number, because the mean of its divisors is an integer number (201215070136).

Almost surely, 2^402430140271 is an apocalyptic number.

402430140271 is a deficient number, since it is larger than the sum of its proper divisors (1).

402430140271 is an equidigital number, since it uses as much as digits as its factorization.

402430140271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 402430140271 its reverse (172041034204), we get a palindrome (574471174475).

The spelling of 402430140271 in words is "four hundred two billion, four hundred thirty million, one hundred forty thousand, two hundred seventy-one".