3123000013 has 4 divisors (see below), whose sum is σ = 3569142880. Its totient is φ = 2676857148.

The previous prime is 3122999993. The next prime is 3123000031. The reversal of 3123000013 is 3100003213.

3123000013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3100003213 = 79 ⋅39240547.

It is not a de Polignac number, because 3123000013 - 2²¹ = 3120902861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122999957 and 3123000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123000043) 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, 223071423 + ... + 223071436.

It is an arithmetic number, because the mean of its divisors is an integer number (892285720).

Almost surely, 2^3123000013 is an apocalyptic number.

It is an amenable number.

3123000013 is a deficient number, since it is larger than the sum of its proper divisors (446142867).

3123000013 is an equidigital number, since it uses as much as digits as its factorization.

3123000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446142866.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3123000013 is about 55883.8081469042. The cubic root of 3123000013 is about 1461.6969093479.

Adding to 3123000013 its reverse (3100003213), we get a palindrome (6223003226).

The spelling of 3123000013 in words is "three billion, one hundred twenty-three million, thirteen", and thus it is an aban number.