331144023 has 8 divisors (see below), whose sum is σ = 504600448. Its totient is φ = 189225144.

The previous prime is 331144019. The next prime is 331144039. The reversal of 331144023 is 320441133.

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

It is not a de Polignac number, because 331144023 - 2² = 331144019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 15768763 = 331144023 / (3 + 3 + 1 + 1 + 4 + 4 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331144123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7884361 + ... + 7884402.

It is an arithmetic number, because the mean of its divisors is an integer number (63075056).

Almost surely, 2^331144023 is an apocalyptic number.

331144023 is a deficient number, since it is larger than the sum of its proper divisors (173456425).

331144023 is a wasteful number, since it uses less digits than its factorization.

331144023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15768773.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 331144023 is about 18197.3630782045. The cubic root of 331144023 is about 691.8399558324.

Adding to 331144023 its reverse (320441133), we get a palindrome (651585156).

The spelling of 331144023 in words is "three hundred thirty-one million, one hundred forty-four thousand, twenty-three".