1382387311 has 4 divisors (see below), whose sum is σ = 1383268824. Its totient is φ = 1381505800.

The previous prime is 1382387273. The next prime is 1382387329. The reversal of 1382387311 is 1137832831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1137832831 = 17 ⋅66931343.

It is a cyclic number.

It is not a de Polignac number, because 1382387311 - 2²⁵ = 1348832879 is a prime.

It is a super-2 number, since 2×1382387311² = 3821989355227621442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382387381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438400 + ... + 441541.

It is an arithmetic number, because the mean of its divisors is an integer number (345817206).

Almost surely, 2^1382387311 is an apocalyptic number.

1382387311 is a deficient number, since it is larger than the sum of its proper divisors (881513).

1382387311 is an equidigital number, since it uses as much as digits as its factorization.

1382387311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881512.

The product of its digits is 24192, while the sum is 37.

The square root of 1382387311 is about 37180.4694833188. The cubic root of 1382387311 is about 1113.9779116584.

The spelling of 1382387311 in words is "one billion, three hundred eighty-two million, three hundred eighty-seven thousand, three hundred eleven".