30312020100 has 288 divisors, whose sum is σ = 93322915840. Its totient is φ = 7584192000.

The previous prime is 30312020033. The next prime is 30312020191. The reversal of 30312020100 is 102021303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 91576935 + ... + 91577265.

Almost surely, 2^30312020100 is an apocalyptic number.

30312020100 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 30312020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46661457920).

30312020100 is an abundant number, since it is smaller than the sum of its proper divisors (63010895740).

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

30312020100 is a wasteful number, since it uses less digits than its factorization.

30312020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30312020100 its reverse (102021303), we get a palindrome (30414041403).

The spelling of 30312020100 in words is "thirty billion, three hundred twelve million, twenty thousand, one hundred".