331223043013431 has 32 divisors (see below), whose sum is σ = 468043988924160. Its totient is φ = 207770887489536.

The previous prime is 331223043013403. The next prime is 331223043013441. The reversal of 331223043013431 is 134310340322133.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-331223043013431 is a prime.

It is a super-2 number, since 2×331223043013431² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331223043013392 and 331223043013401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331223043013441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19081621 + ... + 32039886.

It is an arithmetic number, because the mean of its divisors is an integer number (14626374653880).

Almost surely, 2^{331223043013431} is an apocalyptic number.

331223043013431 is a deficient number, since it is larger than the sum of its proper divisors (136820945910729).

331223043013431 is a wasteful number, since it uses less digits than its factorization.

331223043013431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51122303.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 331223043013431 its reverse (134310340322133), we get a palindrome (465533383335564).

The spelling of 331223043013431 in words is "three hundred thirty-one trillion, two hundred twenty-three billion, forty-three million, thirteen thousand, four hundred thirty-one".