331142333 has 2 divisors, whose sum is σ = 331142334. Its totient is φ = 331142332.

The previous prime is 331142323. The next prime is 331142353. The reversal of 331142333 is 333241133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322633444 + 8508889 = 17962^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 331142333 - 2¹⁰ = 331141309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331142299 and 331142308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331142323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165571166 + 165571167.

It is an arithmetic number, because the mean of its divisors is an integer number (165571167).

Almost surely, 2^331142333 is an apocalyptic number.

It is an amenable number.

331142333 is a deficient number, since it is larger than the sum of its proper divisors (1).

331142333 is an equidigital number, since it uses as much as digits as its factorization.

331142333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 23.

The square root of 331142333 is about 18197.3166428460. The cubic root of 331142333 is about 691.8387788908.

Adding to 331142333 its reverse (333241133), we get a palindrome (664383466).

The spelling of 331142333 in words is "three hundred thirty-one million, one hundred forty-two thousand, three hundred thirty-three".