11385031 has 4 divisors (see below), whose sum is σ = 13011472. Its totient is φ = 9758592.

The previous prime is 11385001. The next prime is 11385041. The reversal of 11385031 is 13058311.

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 11385031 - 2⁷ = 11384903 is a prime.

It is a super-2 number, since 2×11385031² = 259237861741922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11384993 and 11385011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11385001) 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, 813210 + ... + 813223.

It is an arithmetic number, because the mean of its divisors is an integer number (3252868).

Almost surely, 2^11385031 is an apocalyptic number.

11385031 is a deficient number, since it is larger than the sum of its proper divisors (1626441).

11385031 is an equidigital number, since it uses as much as digits as its factorization.

11385031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626440.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11385031 is about 3374.1711574845. The cubic root of 11385031 is about 224.9631610469.

The spelling of 11385031 in words is "eleven million, three hundred eighty-five thousand, thirty-one".