3120100013 has 4 divisors (see below), whose sum is σ = 3122205408. Its totient is φ = 3117994620.

The previous prime is 3120100003. The next prime is 3120100031. The reversal of 3120100013 is 3100010213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3120100013 - 2⁶ = 3120099949 is a prime.

It is a super-2 number, since 2×3120100013² = 19470048182245200338, which contains 22 as substring.

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 = 3120099967 and 3120100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120100003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050473 + ... + 1053438.

It is an arithmetic number, because the mean of its divisors is an integer number (780551352).

Almost surely, 2^3120100013 is an apocalyptic number.

It is an amenable number.

3120100013 is a deficient number, since it is larger than the sum of its proper divisors (2105395).

3120100013 is a wasteful number, since it uses less digits than its factorization.

3120100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105394.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 3120100013 is about 55857.8554278626. The cubic root of 3120100013 is about 1461.2443280931.

Adding to 3120100013 its reverse (3100010213), we get a palindrome (6220110226).

The spelling of 3120100013 in words is "three billion, one hundred twenty million, one hundred thousand, thirteen".