1310043123 has 12 divisors (see below), whose sum is σ = 1894098648. Its totient is φ = 872524800.

The previous prime is 1310043121. The next prime is 1310043143. The reversal of 1310043123 is 3213400131.

It is not a de Polignac number, because 1310043123 - 2¹ = 1310043121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310043096 and 1310043105.

It is not an unprimeable number, because it can be changed into a prime (1310043121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59790 + ... + 78707.

It is an arithmetic number, because the mean of its divisors is an integer number (157841554).

Almost surely, 2^1310043123 is an apocalyptic number.

1310043123 is a deficient number, since it is larger than the sum of its proper divisors (584055525).

1310043123 is a wasteful number, since it uses less digits than its factorization.

1310043123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139554 (or 139551 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1310043123 is about 36194.5178583719. The cubic root of 1310043123 is about 1094.1961874670.

Adding to 1310043123 its reverse (3213400131), we get a palindrome (4523443254).

The spelling of 1310043123 in words is "one billion, three hundred ten million, forty-three thousand, one hundred twenty-three".