3100120420 has 12 divisors (see below), whose sum is σ = 6510252924. Its totient is φ = 1240048160.

The previous prime is 3100120409. The next prime is 3100120433. The reversal of 3100120420 is 240210013.

It can be written as a sum of positive squares in 2 ways, for example, as 2035272996 + 1064847424 = 45114^2 + 32632^2 .

It is a super-2 number, since 2×3100120420² = 19221493237001952800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3100120420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77502991 + ... + 77503030.

It is an arithmetic number, because the mean of its divisors is an integer number (542521077).

Almost surely, 2^3100120420 is an apocalyptic number.

It is an amenable number.

3100120420 is an abundant number, since it is smaller than the sum of its proper divisors (3410132504).

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

3100120420 is a wasteful number, since it uses less digits than its factorization.

3100120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155006030 (or 155006028 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3100120420 is about 55678.7250213221. The cubic root of 3100120420 is about 1458.1186156221.

Adding to 3100120420 its reverse (240210013), we get a palindrome (3340330433).

The spelling of 3100120420 in words is "three billion, one hundred million, one hundred twenty thousand, four hundred twenty".