3120113021 has 8 divisors (see below), whose sum is σ = 3196752480. Its totient is φ = 3044131792.

The previous prime is 3120112999. The next prime is 3120113039. The reversal of 3120113021 is 1203110213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120113021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3120112987 and 3120113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120118021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154955 + ... + 173928.

It is an arithmetic number, because the mean of its divisors is an integer number (399594060).

Almost surely, 2^3120113021 is an apocalyptic number.

It is an amenable number.

3120113021 is a deficient number, since it is larger than the sum of its proper divisors (76639459).

3120113021 is a wasteful number, since it uses less digits than its factorization.

3120113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329115.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3120113021 is about 55857.9718661535. The cubic root of 3120113021 is about 1461.2463587801.

Adding to 3120113021 its reverse (1203110213), we get a palindrome (4323223234).

The spelling of 3120113021 in words is "three billion, one hundred twenty million, one hundred thirteen thousand, twenty-one".