30112122320 has 40 divisors (see below), whose sum is σ = 80012212224. Its totient is φ = 10324156032.

The previous prime is 30112122319. The next prime is 30112122373. The reversal of 30112122320 is 2322121103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×30112122320² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 26885264 + ... + 26886383.

Almost surely, 2^30112122320 is an apocalyptic number.

It is an amenable number.

30112122320 is an abundant number, since it is smaller than the sum of its proper divisors (49900089904).

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

30112122320 is a wasteful number, since it uses less digits than its factorization.

30112122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53771667 (or 53771661 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30112122320 its reverse (2322121103), we get a palindrome (32434243423).

The spelling of 30112122320 in words is "thirty billion, one hundred twelve million, one hundred twenty-two thousand, three hundred twenty".