385121011 has 8 divisors (see below), whose sum is σ = 420323184. Its totient is φ = 349950720.

The previous prime is 385121003. The next prime is 385121041. The reversal of 385121011 is 110121583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385121011 - 2³ = 385121003 is a prime.

It is a super-2 number, since 2×385121011² = 296636386227324242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385121041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22315 + ... + 35611.

It is an arithmetic number, because the mean of its divisors is an integer number (52540398).

Almost surely, 2^385121011 is an apocalyptic number.

385121011 is a deficient number, since it is larger than the sum of its proper divisors (35202173).

385121011 is a wasteful number, since it uses less digits than its factorization.

385121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15941.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 385121011 is about 19624.5002738923. The cubic root of 385121011 is about 727.5548458708.

Adding to 385121011 its reverse (110121583), we get a palindrome (495242594).

The spelling of 385121011 in words is "three hundred eighty-five million, one hundred twenty-one thousand, eleven".