31230020024 has 32 divisors (see below), whose sum is σ = 66988714080. Its totient is φ = 13370845824.

The previous prime is 31230020023. The next prime is 31230020039. The reversal of 31230020024 is 42002003213.

It is a junction number, because it is equal to n+sod(n) for n = 31230019984 and 31230020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230020023) 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 7 ways as a sum of consecutive naturals, for example, 223847 + ... + 335510.

It is an arithmetic number, because the mean of its divisors is an integer number (2093397315).

Almost surely, 2^31230020024 is an apocalyptic number.

It is an amenable number.

31230020024 is an abundant number, since it is smaller than the sum of its proper divisors (35758694056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31230020024 is a wasteful number, since it uses less digits than its factorization.

31230020024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560367 (or 560363 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 31230020024 its reverse (42002003213), we get a palindrome (73232023237).

The spelling of 31230020024 in words is "thirty-one billion, two hundred thirty million, twenty thousand, twenty-four".