15123144313 has 4 divisors (see below), whose sum is σ = 15141520768. Its totient is φ = 15104767860.

The previous prime is 15123144307. The next prime is 15123144329. The reversal of 15123144313 is 31344132151.

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 15123144313 - 2⁹ = 15123143801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15123144383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9186993 + ... + 9188638.

It is an arithmetic number, because the mean of its divisors is an integer number (3785380192).

Almost surely, 2^15123144313 is an apocalyptic number.

It is an amenable number.

15123144313 is a deficient number, since it is larger than the sum of its proper divisors (18376455).

15123144313 is an equidigital number, since it uses as much as digits as its factorization.

15123144313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376454.

The product of its digits is 4320, while the sum is 28.

Adding to 15123144313 its reverse (31344132151), we get a palindrome (46467276464).

The spelling of 15123144313 in words is "fifteen billion, one hundred twenty-three million, one hundred forty-four thousand, three hundred thirteen".