1420655311 has 2 divisors, whose sum is σ = 1420655312. Its totient is φ = 1420655310.

The previous prime is 1420655309. The next prime is 1420655359. The reversal of 1420655311 is 1135560241.

It is a weak prime.

It is an emirp because it is prime and its reverse (1135560241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420655311 - 2¹ = 1420655309 is a prime.

Together with 1420655309, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1420655311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420655381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710327655 + 710327656.

It is an arithmetic number, because the mean of its divisors is an integer number (710327656).

Almost surely, 2^1420655311 is an apocalyptic number.

1420655311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420655311 is an equidigital number, since it uses as much as digits as its factorization.

1420655311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1420655311 is about 37691.5814340550. The cubic root of 1420655311 is about 1124.1637402719.

The spelling of 1420655311 in words is "one billion, four hundred twenty million, six hundred fifty-five thousand, three hundred eleven".