1312030123 has 8 divisors (see below), whose sum is σ = 1382803520. Its totient is φ = 1241428680.

The previous prime is 1312030117. The next prime is 1312030127. The reversal of 1312030123 is 3210302131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312030123 - 2¹⁷ = 1311899051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312030097 and 1312030106.

It is not an unprimeable number, because it can be changed into a prime (1312030127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27165 + ... + 57982.

It is an arithmetic number, because the mean of its divisors is an integer number (172850440).

Almost surely, 2^1312030123 is an apocalyptic number.

1312030123 is a deficient number, since it is larger than the sum of its proper divisors (70773397).

1312030123 is an equidigital number, since it uses as much as digits as its factorization.

1312030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85977.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1312030123 is about 36221.9563662704. The cubic root of 1312030123 is about 1094.7491131667.

Adding to 1312030123 its reverse (3210302131), we get a palindrome (4522332254).

The spelling of 1312030123 in words is "one billion, three hundred twelve million, thirty thousand, one hundred twenty-three".