30980517120 has 1296 divisors, whose sum is σ = 139034907648. Its totient is φ = 6449725440.

The previous prime is 30980517119. The next prime is 30980517143. The reversal of 30980517120 is 2171508903.

30980517120 is a `hidden beast` number, since 30 + 98 + 0 + 517 + 1 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a super-2 number, since 2×30980517120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 999371505 + ... + 999371535.

Almost surely, 2^30980517120 is an apocalyptic number.

30980517120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30980517120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69517453824).

30980517120 is an abundant number, since it is smaller than the sum of its proper divisors (108054390528).

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

30980517120 is an frugal number, since it uses more digits than its factorization.

30980517120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 30980517120 in words is "thirty billion, nine hundred eighty million, five hundred seventeen thousand, one hundred twenty".