3120113421 has 6 divisors (see below), whose sum is σ = 4506830510. Its totient is φ = 2080075608.

The previous prime is 3120113417. The next prime is 3120113431. The reversal of 3120113421 is 1243110213.

3120113421 is a `hidden beast` number, since 31 + 201 + 13 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3095253225 + 24860196 = 55635^2 + 4986^2 .

It is not a de Polignac number, because 3120113421 - 2² = 3120113417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120113394 and 3120113403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120113431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173339626 + ... + 173339643.

Almost surely, 2^3120113421 is an apocalyptic number.

It is an amenable number.

3120113421 is a deficient number, since it is larger than the sum of its proper divisors (1386717089).

3120113421 is a wasteful number, since it uses less digits than its factorization.

3120113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346679275 (or 346679272 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3120113421 is about 55857.9754466629. The cubic root of 3120113421 is about 1461.2464212243.

Adding to 3120113421 its reverse (1243110213), we get a palindrome (4363223634).

The spelling of 3120113421 in words is "three billion, one hundred twenty million, one hundred thirteen thousand, four hundred twenty-one".