3123045513 has 24 divisors (see below), whose sum is σ = 5190120000. Its totient is φ = 1772614944.

The previous prime is 3123045509. The next prime is 3123045551. The reversal of 3123045513 is 3155403213.

It is not a de Polignac number, because 3123045513 - 2² = 3123045509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3123045553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156963 + ... + 175736.

It is an arithmetic number, because the mean of its divisors is an integer number (216255000).

Almost surely, 2^3123045513 is an apocalyptic number.

It is an amenable number.

3123045513 is a deficient number, since it is larger than the sum of its proper divisors (2067074487).

3123045513 is a wasteful number, since it uses less digits than its factorization.

3123045513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332861 (or 332858 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 3123045513 is about 55884.2152400837. The cubic root of 3123045513 is about 1461.7040079589.

Adding to 3123045513 its reverse (3155403213), we get a palindrome (6278448726).

The spelling of 3123045513 in words is "three billion, one hundred twenty-three million, forty-five thousand, five hundred thirteen".