201030387 has 4 divisors (see below), whose sum is σ = 268040520. Its totient is φ = 134020256.

The previous prime is 201030371. The next prime is 201030409. The reversal of 201030387 is 783030102.

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 201030387 - 2⁴ = 201030371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201030337) 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, 33505062 + ... + 33505067.

It is an arithmetic number, because the mean of its divisors is an integer number (67010130).

Almost surely, 2^201030387 is an apocalyptic number.

201030387 is a deficient number, since it is larger than the sum of its proper divisors (67010133).

201030387 is an equidigital number, since it uses as much as digits as its factorization.

201030387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67010132.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 201030387 is about 14178.5185051189. The cubic root of 201030387 is about 585.8061178383.

Adding to 201030387 its reverse (783030102), we get a palindrome (984060489).

The spelling of 201030387 in words is "two hundred one million, thirty thousand, three hundred eighty-seven".