30453031242 has 64 divisors (see below), whose sum is σ = 71376336000. Its totient is φ = 9597688704.

The previous prime is 30453031241. The next prime is 30453031249. The reversal of 30453031242 is 24213035403.

30453031242 is a `hidden beast` number, since 3 + 0 + 4 + 530 + 3 + 124 + 2 = 666.

It is a super-2 number, since 2×30453031242² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (30453031241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493078 + ... + 551390.

It is an arithmetic number, because the mean of its divisors is an integer number (1115255250).

Almost surely, 2^30453031242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30453031242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35688168000).

30453031242 is an abundant number, since it is smaller than the sum of its proper divisors (40923304758).

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

30453031242 is a wasteful number, since it uses less digits than its factorization.

30453031242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58852 (or 58846 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 30453031242 its reverse (24213035403), we get a palindrome (54666066645).

The spelling of 30453031242 in words is "thirty billion, four hundred fifty-three million, thirty-one thousand, two hundred forty-two".