30520200630040 has 32 divisors (see below), whose sum is σ = 74913219729360. Its totient is φ = 11098254774400.

The previous prime is 30520200630011. The next prime is 30520200630041. The reversal of 30520200630040 is 4003600202503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30520200629987 and 30520200630014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30520200630041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34682045731 + ... + 34682046610.

Almost surely, 2^{30520200630040} is an apocalyptic number.

It is an amenable number.

30520200630040 is an abundant number, since it is smaller than the sum of its proper divisors (44393019099320).

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

30520200630040 is a wasteful number, since it uses less digits than its factorization.

30520200630040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69364092363 (or 69364092359 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 30520200630040 its reverse (4003600202503), we get a palindrome (34523800832543).

The spelling of 30520200630040 in words is "thirty trillion, five hundred twenty billion, two hundred million, six hundred thirty thousand, forty".