30313322120 has 32 divisors (see below), whose sum is σ = 69868514520. Its totient is φ = 11829588480.

The previous prime is 30313322113. The next prime is 30313322153. The reversal of 30313322120 is 2122331303.

It can be written as a sum of positive squares in 4 ways, for example, as 5766579844 + 24546742276 = 75938^2 + 156674^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30313322092 and 30313322101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9240227 + ... + 9243506.

Almost surely, 2^30313322120 is an apocalyptic number.

It is an amenable number.

30313322120 is an abundant number, since it is smaller than the sum of its proper divisors (39555192400).

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

30313322120 is a wasteful number, since it uses less digits than its factorization.

30313322120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18483785 (or 18483781 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30313322120 its reverse (2122331303), we get a palindrome (32435653423).

The spelling of 30313322120 in words is "thirty billion, three hundred thirteen million, three hundred twenty-two thousand, one hundred twenty".