31223424440344 has 16 divisors (see below), whose sum is σ = 58549584511800. Its totient is φ = 15610201903872.

The previous prime is 31223424440309. The next prime is 31223424440359. The reversal of 31223424440344 is 44304442432213.

It is a super-2 number, since 2×31223424440344² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31223424440297 and 31223424440306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188701674 + ... + 188867065.

Almost surely, 2^{31223424440344} is an apocalyptic number.

It is an amenable number.

31223424440344 is a deficient number, since it is larger than the sum of its proper divisors (27326160071456).

31223424440344 is a wasteful number, since it uses less digits than its factorization.

31223424440344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377579082 (or 377579078 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 31223424440344 its reverse (44304442432213), we get a palindrome (75527866872557).

The spelling of 31223424440344 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred twenty-four million, four hundred forty thousand, three hundred forty-four".