30303212040 has 48 divisors (see below), whose sum is σ = 98485440300. Its totient is φ = 8080856448.

The previous prime is 30303212033. The next prime is 30303212059. The reversal of 30303212040 is 4021230303.

30303212040 is a `hidden beast` number, since 303 + 0 + 321 + 2 + 0 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29140538436 + 1162673604 = 170706^2 + 34098^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42087435 + ... + 42088154.

Almost surely, 2^30303212040 is an apocalyptic number.

30303212040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30303212040 is an abundant number, since it is smaller than the sum of its proper divisors (68182228260).

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

30303212040 is a wasteful number, since it uses less digits than its factorization.

30303212040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84175606 (or 84175599 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30303212040 its reverse (4021230303), we get a palindrome (34324442343).

The spelling of 30303212040 in words is "thirty billion, three hundred three million, two hundred twelve thousand, forty".