31224433312423 has 16 divisors (see below), whose sum is σ = 35611370292960. Its totient is φ = 27121746364416.

The previous prime is 31224433312367. The next prime is 31224433312451. The reversal of 31224433312423 is 32421333442213.

It is a cyclic number.

It is not a de Polignac number, because 31224433312423 - 2¹³ = 31224433304231 is a prime.

It is a super-2 number, since 2×31224433312423² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31224433312453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12845890 + ... + 15081967.

It is an arithmetic number, because the mean of its divisors is an integer number (2225710643310).

Almost surely, 2^{31224433312423} is an apocalyptic number.

31224433312423 is a deficient number, since it is larger than the sum of its proper divisors (4386936980537).

31224433312423 is a wasteful number, since it uses less digits than its factorization.

31224433312423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27932946.

The product of its digits is 248832, while the sum is 37.

Adding to 31224433312423 its reverse (32421333442213), we get a palindrome (63645766754636).

The spelling of 31224433312423 in words is "thirty-one trillion, two hundred twenty-four billion, four hundred thirty-three million, three hundred twelve thousand, four hundred twenty-three".