30520212136152 has 32 divisors (see below), whose sum is σ = 76301122314480. Its totient is φ = 10173325115520.

The previous prime is 30520212136129. The next prime is 30520212136171. The reversal of 30520212136152 is 25163121202503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732903 + ... + 8002710.

Almost surely, 2^{30520212136152} is an apocalyptic number.

It is an amenable number.

30520212136152 is an abundant number, since it is smaller than the sum of its proper divisors (45780910178328).

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

30520212136152 is a wasteful number, since it uses less digits than its factorization.

30520212136152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9866243 (or 9866239 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 30520212136152 its reverse (25163121202503), we get a palindrome (55683333338655).

The spelling of 30520212136152 in words is "thirty trillion, five hundred twenty billion, two hundred twelve million, one hundred thirty-six thousand, one hundred fifty-two".