30142450252520 has 64 divisors (see below), whose sum is σ = 70009230320640. Its totient is φ = 11667885465600.

The previous prime is 30142450252517. The next prime is 30142450252531. The reversal of 30142450252520 is 2525205424103.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134007269 + ... + 134232011.

It is an arithmetic number, because the mean of its divisors is an integer number (1093894223760).

Almost surely, 2^{30142450252520} is an apocalyptic number.

It is an amenable number.

30142450252520 is an abundant number, since it is smaller than the sum of its proper divisors (39866780068120).

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

30142450252520 is a wasteful number, since it uses less digits than its factorization.

30142450252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332946 (or 332942 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 30142450252520 its reverse (2525205424103), we get a palindrome (32667655676623).

The spelling of 30142450252520 in words is "thirty trillion, one hundred forty-two billion, four hundred fifty million, two hundred fifty-two thousand, five hundred twenty".