1302400271 has 2 divisors, whose sum is σ = 1302400272. Its totient is φ = 1302400270.

The previous prime is 1302400261. The next prime is 1302400273. The reversal of 1302400271 is 1720042031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1302400271 - 2¹⁸ = 1302138127 is a prime.

Together with 1302400273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302400273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651200135 + 651200136.

It is an arithmetic number, because the mean of its divisors is an integer number (651200136).

Almost surely, 2^1302400271 is an apocalyptic number.

1302400271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302400271 is an equidigital number, since it uses as much as digits as its factorization.

1302400271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1302400271 is about 36088.7831742773. The cubic root of 1302400271 is about 1092.0641723101.

The spelling of 1302400271 in words is "one billion, three hundred two million, four hundred thousand, two hundred seventy-one".