1385293111 has 4 divisors (see below), whose sum is σ = 1394116792. Its totient is φ = 1376469432.

The previous prime is 1385293109. The next prime is 1385293123. The reversal of 1385293111 is 1113925831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113925831 = 18253 ⋅61027.

It is a cyclic number.

It is not a de Polignac number, because 1385293111 - 2¹ = 1385293109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385293711) 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, 4411605 + ... + 4411918.

It is an arithmetic number, because the mean of its divisors is an integer number (348529198).

Almost surely, 2^1385293111 is an apocalyptic number.

1385293111 is a deficient number, since it is larger than the sum of its proper divisors (8823681).

1385293111 is an equidigital number, since it uses as much as digits as its factorization.

1385293111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823680.

The product of its digits is 6480, while the sum is 34.

The square root of 1385293111 is about 37219.5259373356. The cubic root of 1385293111 is about 1114.7578984639.

The spelling of 1385293111 in words is "one billion, three hundred eighty-five million, two hundred ninety-three thousand, one hundred eleven".