201233019 has 16 divisors (see below), whose sum is σ = 290872064. Its totient is φ = 123012000.

The previous prime is 201232963. The next prime is 201233033. The reversal of 201233019 is 910332102.

It is a happy number.

It is not a de Polignac number, because 201233019 - 2⁸ = 201232763 is a prime.

It is a super-2 number, since 2×201233019² = 80989455871708722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201232986 and 201233004.

It is not an unprimeable number, because it can be changed into a prime (201233069) 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 15 ways as a sum of consecutive naturals, for example, 11197 + ... + 22974.

It is an arithmetic number, because the mean of its divisors is an integer number (18179504).

Almost surely, 2^201233019 is an apocalyptic number.

201233019 is a deficient number, since it is larger than the sum of its proper divisors (89639045).

201233019 is a wasteful number, since it uses less digits than its factorization.

201233019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34338.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 201233019 is about 14185.6624448772. The cubic root of 201233019 is about 586.0028761599.

The spelling of 201233019 in words is "two hundred one million, two hundred thirty-three thousand, nineteen".