1380684011 has 4 divisors (see below), whose sum is σ = 1577924592. Its totient is φ = 1183443432.

The previous prime is 1380683981. The next prime is 1380684017. The reversal of 1380684011 is 1104860831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380684011 - 2¹⁰ = 1380682987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380684017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98620280 + ... + 98620293.

It is an arithmetic number, because the mean of its divisors is an integer number (394481148).

Almost surely, 2^1380684011 is an apocalyptic number.

1380684011 is a deficient number, since it is larger than the sum of its proper divisors (197240581).

1380684011 is an equidigital number, since it uses as much as digits as its factorization.

1380684011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197240580.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1380684011 is about 37157.5565800552. The cubic root of 1380684011 is about 1113.5201966121.

The spelling of 1380684011 in words is "one billion, three hundred eighty million, six hundred eighty-four thousand, eleven".