201103011 has 12 divisors (see below), whose sum is σ = 305770920. Its totient is φ = 127012320.

The previous prime is 201103009. The next prime is 201103033. The reversal of 201103011 is 110301102.

It is not a de Polignac number, because 201103011 - 2¹ = 201103009 is a prime.

It is a super-2 number, since 2×201103011² = 80884842066532242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201102984 and 201103002.

It is not an unprimeable number, because it can be changed into a prime (201103411) 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 11 ways as a sum of consecutive naturals, for example, 587850 + ... + 588191.

It is an arithmetic number, because the mean of its divisors is an integer number (25480910).

Almost surely, 2^201103011 is an apocalyptic number.

201103011 is a deficient number, since it is larger than the sum of its proper divisors (104667909).

201103011 is a wasteful number, since it uses less digits than its factorization.

201103011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176066 (or 1176063 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 201103011 is about 14181.0793312780. The cubic root of 201103011 is about 585.8766518872.

Adding to 201103011 its reverse (110301102), we get a palindrome (311404113).

The spelling of 201103011 in words is "two hundred one million, one hundred three thousand, eleven".