201002031 has 6 divisors (see below), whose sum is σ = 290336280. Its totient is φ = 134001348.

The previous prime is 201001951. The next prime is 201002057. The reversal of 201002031 is 130200102.

It is a happy number.

It is not a de Polignac number, because 201002031 - 2⁹ = 201001519 is a prime.

It is a super-2 number, since 2×201002031² = 80803632932249922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 22333559 = 201002031 / (2 + 0 + 1 + 0 + 0 + 2 + 0 + 3 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002531) 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 5 ways as a sum of consecutive naturals, for example, 11166771 + ... + 11166788.

It is an arithmetic number, because the mean of its divisors is an integer number (48389380).

Almost surely, 2^201002031 is an apocalyptic number.

201002031 is a deficient number, since it is larger than the sum of its proper divisors (89334249).

201002031 is a wasteful number, since it uses less digits than its factorization.

201002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333565 (or 22333562 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 201002031 is about 14177.5185064242. The cubic root of 201002031 is about 585.7785732473.

Adding to 201002031 its reverse (130200102), we get a palindrome (331202133).

The spelling of 201002031 in words is "two hundred one million, two thousand, thirty-one".