30211455040 has 112 divisors (see below), whose sum is σ = 78788727360. Its totient is φ = 10965841920.

The previous prime is 30211455031. The next prime is 30211455041. The reversal of 30211455040 is 4055411203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30211454996 and 30211455014.

It is not an unprimeable number, because it can be changed into a prime (30211455041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183895 + ... + 306985.

It is an arithmetic number, because the mean of its divisors is an integer number (703470780).

Almost surely, 2^30211455040 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 30211455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39394363680).

30211455040 is an abundant number, since it is smaller than the sum of its proper divisors (48577272320).

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

30211455040 is a wasteful number, since it uses less digits than its factorization.

30211455040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123180 (or 123170 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 30211455040 its reverse (4055411203), we get a palindrome (34266866243).

The spelling of 30211455040 in words is "thirty billion, two hundred eleven million, four hundred fifty-five thousand, forty".