31131044343022 has 32 divisors (see below), whose sum is σ = 50997743161344. Its totient is φ = 14165571554400.

The previous prime is 31131044342999. The next prime is 31131044343031. The reversal of 31131044343022 is 22034344013113.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 163850163 + ... + 164040049.

It is an arithmetic number, because the mean of its divisors is an integer number (1593679473792).

Almost surely, 2^{31131044343022} is an apocalyptic number.

31131044343022 is a deficient number, since it is larger than the sum of its proper divisors (19866698818322).

31131044343022 is a wasteful number, since it uses less digits than its factorization.

31131044343022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278784.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31131044343022 its reverse (22034344013113), we get a palindrome (53165388356135).

The spelling of 31131044343022 in words is "thirty-one trillion, one hundred thirty-one billion, forty-four million, three hundred forty-three thousand, twenty-two".