30531353200000 has 96 divisors (see below), whose sum is σ = 76025360315520. Its totient is φ = 12212541120000.

The previous prime is 30531353199989. The next prime is 30531353200001. The reversal of 30531353200000 is 235313503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30531353200001) 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 11 ways as a sum of consecutive naturals, for example, 37764192 + ... + 38564191.

It is an arithmetic number, because the mean of its divisors is an integer number (791930836620).

Almost surely, 2^{30531353200000} is an apocalyptic number.

It is an amenable number.

30531353200000 is an abundant number, since it is smaller than the sum of its proper divisors (45494007115520).

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

30531353200000 is an frugal number, since it uses more digits than its factorization.

30531353200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76328422 (or 76328390 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 25.

Adding to 30531353200000 its reverse (235313503), we get a palindrome (30531588513503).

The spelling of 30531353200000 in words is "thirty trillion, five hundred thirty-one billion, three hundred fifty-three million, two hundred thousand".