30520015653442 has 64 divisors (see below), whose sum is σ = 55266497814528. Its totient is φ = 12363085728000.

The previous prime is 30520015653389. The next prime is 30520015653469. The reversal of 30520015653442 is 24435651002503.

It is a junction number, because it is equal to n+sod(n) for n = 30520015653395 and 30520015653404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 741999217 + ... + 742040347.

It is an arithmetic number, because the mean of its divisors is an integer number (863539028352).

Almost surely, 2^{30520015653442} is an apocalyptic number.

30520015653442 is a deficient number, since it is larger than the sum of its proper divisors (24746482161086).

30520015653442 is a wasteful number, since it uses less digits than its factorization.

30520015653442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80975.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 30520015653442 its reverse (24435651002503), we get a palindrome (54955666655945).

The spelling of 30520015653442 in words is "thirty trillion, five hundred twenty billion, fifteen million, six hundred fifty-three thousand, four hundred forty-two".