1377420311 has 2 divisors, whose sum is σ = 1377420312. Its totient is φ = 1377420310.

The previous prime is 1377420293. The next prime is 1377420347. The reversal of 1377420311 is 1130247731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1377420311 - 2¹⁰ = 1377419287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377420911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688710155 + 688710156.

It is an arithmetic number, because the mean of its divisors is an integer number (688710156).

Almost surely, 2^1377420311 is an apocalyptic number.

1377420311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377420311 is an equidigital number, since it uses as much as digits as its factorization.

1377420311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1377420311 is about 37113.6135535197. The cubic root of 1377420311 is about 1112.6421141685.

It can be divided in two parts, 1377420 and 311, that added together give a palindrome (1377731).

The spelling of 1377420311 in words is "one billion, three hundred seventy-seven million, four hundred twenty thousand, three hundred eleven".