331143104404442 has 64 divisors (see below), whose sum is σ = 566429513303808. Its totient is φ = 143720960064000.

The previous prime is 331143104404417. The next prime is 331143104404457. The reversal of 331143104404442 is 244404401341133.

It is a happy number.

It is a super-2 number, since 2×331143104404442² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331143104404396 and 331143104404405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 855037988 + ... + 855425184.

It is an arithmetic number, because the mean of its divisors is an integer number (8850461145372).

Almost surely, 2^{331143104404442} is an apocalyptic number.

331143104404442 is a deficient number, since it is larger than the sum of its proper divisors (235286408899366).

331143104404442 is a wasteful number, since it uses less digits than its factorization.

331143104404442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390215.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 331143104404442 its reverse (244404401341133), we get a palindrome (575547505745575).

The spelling of 331143104404442 in words is "three hundred thirty-one trillion, one hundred forty-three billion, one hundred four million, four hundred four thousand, four hundred forty-two".