30731470200 has 192 divisors, whose sum is σ = 111424416000. Its totient is φ = 7763713920.

The previous prime is 30731470193. The next prime is 30731470207. The reversal of 30731470200 is 207413703.

It is an interprime number because it is at equal distance from previous prime (30731470193) and next prime (30731470207).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30731470207) 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 47 ways as a sum of consecutive naturals, for example, 47164 + ... + 252363.

It is an arithmetic number, because the mean of its divisors is an integer number (580335500).

Almost surely, 2^30731470200 is an apocalyptic number.

30731470200 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 30731470200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55712208000).

30731470200 is an abundant number, since it is smaller than the sum of its proper divisors (80692945800).

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

30731470200 is a wasteful number, since it uses less digits than its factorization.

30731470200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299571 (or 299556 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

Adding to 30731470200 its reverse (207413703), we get a palindrome (30938883903).

The spelling of 30731470200 in words is "thirty billion, seven hundred thirty-one million, four hundred seventy thousand, two hundred".