31320000123300 has 432 divisors, whose sum is σ = 114880199196672. Its totient is φ = 6989493369600.

The previous prime is 31320000123287. The next prime is 31320000123301. The reversal of 31320000123300 is 332100002313.

31320000123300 is a `hidden beast` number, since 3 + 1 + 320 + 0 + 0 + 0 + 12 + 330 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (31320000123301) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 45731997 + ... + 46411803.

Almost surely, 2^{31320000123300} is an apocalyptic number.

31320000123300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31320000123300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57440099598336).

31320000123300 is an abundant number, since it is smaller than the sum of its proper divisors (83560199073372).

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

31320000123300 is a wasteful number, since it uses less digits than its factorization.

31320000123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680008 (or 679998 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31320000123300 its reverse (332100002313), we get a palindrome (31652100125613).

The spelling of 31320000123300 in words is "thirty-one trillion, three hundred twenty billion, one hundred twenty-three thousand, three hundred".