30402422120 has 256 divisors, whose sum is σ = 86220288000. Its totient is φ = 9407287296.

The previous prime is 30402422119. The next prime is 30402422129. The reversal of 30402422120 is 2122420403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30402422092 and 30402422101.

It is not an unprimeable number, because it can be changed into a prime (30402422129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51268544 + ... + 51269136.

It is an arithmetic number, because the mean of its divisors is an integer number (336798000).

Almost surely, 2^30402422120 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 30402422120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43110144000).

30402422120 is an abundant number, since it is smaller than the sum of its proper divisors (55817865880).

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

30402422120 is a wasteful number, since it uses less digits than its factorization.

30402422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 30402422120 its reverse (2122420403), we get a palindrome (32524842523).

The spelling of 30402422120 in words is "thirty billion, four hundred two million, four hundred twenty-two thousand, one hundred twenty".