331143334133440 has 56 divisors (see below), whose sum is σ = 803413084529520. Its totient is φ = 129958138672128.

The previous prime is 331143334133413. The next prime is 331143334133473. The reversal of 331143334133440 is 44331433341133.

It is a happy number.

It is a super-2 number, since 2×331143334133440² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 331143334133393 and 331143334133402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9762463410 + ... + 9762497329.

Almost surely, 2^{331143334133440} is an apocalyptic number.

It is an amenable number.

331143334133440 is an abundant number, since it is smaller than the sum of its proper divisors (472269750396080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331143334133440 is a wasteful number, since it uses less digits than its factorization.

331143334133440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19524960809 (or 19524960799 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 40.

Adding to 331143334133440 its reverse (44331433341133), we get a palindrome (375474767474573).

The spelling of 331143334133440 in words is "three hundred thirty-one trillion, one hundred forty-three billion, three hundred thirty-four million, one hundred thirty-three thousand, four hundred forty".