201121343 has 8 divisors (see below), whose sum is σ = 203171328. Its totient is φ = 199080064.

The previous prime is 201121309. The next prime is 201121369. The reversal of 201121343 is 343121102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201121343 is a prime.

It is a super-2 number, since 2×201121343² = 80899589220247298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201171343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50555 + ... + 54387.

It is an arithmetic number, because the mean of its divisors is an integer number (25396416).

Almost surely, 2^201121343 is an apocalyptic number.

201121343 is a deficient number, since it is larger than the sum of its proper divisors (2049985).

201121343 is a wasteful number, since it uses less digits than its factorization.

201121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 201121343 is about 14181.7256707356. The cubic root of 201121343 is about 585.8944536502.

Adding to 201121343 its reverse (343121102), we get a palindrome (544242445).

The spelling of 201121343 in words is "two hundred one million, one hundred twenty-one thousand, three hundred forty-three".