31224404441 has 8 divisors (see below), whose sum is σ = 33065683560. Its totient is φ = 29383630848.

The previous prime is 31224404413. The next prime is 31224404459. The reversal of 31224404441 is 14440442213.

It can be written as a sum of positive squares in 4 ways, for example, as 4132561225 + 27091843216 = 64285^2 + 164596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31224404441 - 2²⁶ = 31157295577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31224404411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4685 + ... + 249941.

It is an arithmetic number, because the mean of its divisors is an integer number (4133210445).

Almost surely, 2^31224404441 is an apocalyptic number.

It is an amenable number.

31224404441 is a deficient number, since it is larger than the sum of its proper divisors (1841279119).

31224404441 is a wasteful number, since it uses less digits than its factorization.

31224404441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252763.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 31224404441 its reverse (14440442213), we get a palindrome (45664846654).

The spelling of 31224404441 in words is "thirty-one billion, two hundred twenty-four million, four hundred four thousand, four hundred forty-one".