201366331 has 8 divisors (see below), whose sum is σ = 202521600. Its totient is φ = 200215080.

The previous prime is 201366317. The next prime is 201366337. The reversal of 201366331 is 133663102.

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

It is a cyclic number.

It is not a de Polignac number, because 201366331 - 2¹¹ = 201364283 is a prime.

It is a super-2 number, since 2×201366331² = 81096798520803122, 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 = 201366296 and 201366305.

It is not an unprimeable number, because it can be changed into a prime (201366337) 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, 171376 + ... + 172546.

It is an arithmetic number, because the mean of its divisors is an integer number (25315200).

Almost surely, 2^201366331 is an apocalyptic number.

201366331 is a deficient number, since it is larger than the sum of its proper divisors (1155269).

201366331 is a wasteful number, since it uses less digits than its factorization.

201366331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 201366331 is about 14190.3604957732. The cubic root of 201366331 is about 586.1322518310.

The spelling of 201366331 in words is "two hundred one million, three hundred sixty-six thousand, three hundred thirty-one".