30120551205 has 16 divisors (see below), whose sum is σ = 49313647680. Its totient is φ = 15690705408.

The previous prime is 30120551191. The next prime is 30120551257. The reversal of 30120551205 is 50215502103.

It is a happy number.

It is not a de Polignac number, because 30120551205 - 2⁴ = 30120551189 is a prime.

It is a congruent 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, 23348620 + ... + 23349909.

It is an arithmetic number, because the mean of its divisors is an integer number (3082102980).

Almost surely, 2^30120551205 is an apocalyptic number.

It is an amenable number.

30120551205 is a deficient number, since it is larger than the sum of its proper divisors (19193096475).

30120551205 is a wasteful number, since it uses less digits than its factorization.

30120551205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46698580.

The product of its (nonzero) digits is 1500, while the sum is 24.

The spelling of 30120551205 in words is "thirty billion, one hundred twenty million, five hundred fifty-one thousand, two hundred five".