331203601 has 3 divisors (see below), whose sum is σ = 331221801. Its totient is φ = 331185402.

The previous prime is 331203599. The next prime is 331203643. The reversal of 331203601 is 106302133.

The square root of 331203601 is 18199.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 331203601 - 2¹ = 331203599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331203671) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9100 + ... + 27298.

It is an arithmetic number, because the mean of its divisors is an integer number (110407267).

Almost surely, 2^331203601 is an apocalyptic number.

331203601 is the 18199-th square number.

331203601 is the 9100-th centered octagonal number.

It is an amenable number.

331203601 is a deficient number, since it is larger than the sum of its proper divisors (18200).

331203601 is an frugal number, since it uses more digits than its factorization.

331203601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36398 (or 18199 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The cubic root of 331203601 is about 691.8814442949.

Multiplying 331203601 by its product of nonzero digits (324), we get a square (107309966724 = 327582²).

Adding to 331203601 its reverse (106302133), we get a palindrome (437505734).

The spelling of 331203601 in words is "three hundred thirty-one million, two hundred three thousand, six hundred one".