331143144220401 has 64 divisors (see below), whose sum is σ = 477062772657408. Its totient is φ = 203577159057408.

The previous prime is 331143144220337. The next prime is 331143144220411. The reversal of 331143144220401 is 104022441341133.

It is a happy number.

It is not a de Polignac number, because 331143144220401 - 2⁶ = 331143144220337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331143144220411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 206435821 + ... + 208033733.

It is an arithmetic number, because the mean of its divisors is an integer number (7454105822772).

Almost surely, 2^{331143144220401} is an apocalyptic number.

It is an amenable number.

331143144220401 is a deficient number, since it is larger than the sum of its proper divisors (145919628437007).

331143144220401 is a wasteful number, since it uses less digits than its factorization.

331143144220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598450.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 331143144220401 its reverse (104022441341133), we get a palindrome (435165585561534).

The spelling of 331143144220401 in words is "three hundred thirty-one trillion, one hundred forty-three billion, one hundred forty-four million, two hundred twenty thousand, four hundred one".