30378821112 has 192 divisors, whose sum is σ = 86466631680. Its totient is φ = 9626862336.

The previous prime is 30378821089. The next prime is 30378821113. The reversal of 30378821112 is 21112887303.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30378821113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19189873 + ... + 19191455.

It is an arithmetic number, because the mean of its divisors is an integer number (450347040).

Almost surely, 2^30378821112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30378821112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43233315840).

30378821112 is an abundant number, since it is smaller than the sum of its proper divisors (56087810568).

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

30378821112 is a wasteful number, since it uses less digits than its factorization.

30378821112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

It can be divided in two parts, 303788 and 21112, that added together give a square (324900 = 570²).

The spelling of 30378821112 in words is "thirty billion, three hundred seventy-eight million, eight hundred twenty-one thousand, one hundred twelve".