31300024212 has 36 divisors (see below), whose sum is σ = 82049860256. Its totient is φ = 10433341080.

The previous prime is 31300024201. The next prime is 31300024213. The reversal of 31300024212 is 21242000313.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300024213) 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 11 ways as a sum of consecutive naturals, for example, 16099864 + ... + 16101807.

Almost surely, 2^31300024212 is an apocalyptic number.

It is an amenable number.

31300024212 is an abundant number, since it is smaller than the sum of its proper divisors (50749836044).

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

31300024212 is a wasteful number, since it uses less digits than its factorization.

31300024212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32201690 (or 32201676 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31300024212 its reverse (21242000313), we get a palindrome (52542024525).

The spelling of 31300024212 in words is "thirty-one billion, three hundred million, twenty-four thousand, two hundred twelve".