1310233123 has 4 divisors (see below), whose sum is σ = 1310313208. Its totient is φ = 1310153040.

The previous prime is 1310233109. The next prime is 1310233207. The reversal of 1310233123 is 3213320131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3213320131 = 7 ⋅459045733.

It is a cyclic number.

It is not a de Polignac number, because 1310233123 - 2¹⁷ = 1310102051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310233123.

It is not an unprimeable number, because it can be changed into a prime (1313233123) 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, 5661 + ... + 51502.

It is an arithmetic number, because the mean of its divisors is an integer number (327578302).

Almost surely, 2^1310233123 is an apocalyptic number.

1310233123 is a deficient number, since it is larger than the sum of its proper divisors (80085).

1310233123 is an equidigital number, since it uses as much as digits as its factorization.

1310233123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80084.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1310233123 is about 36197.1424700901. The cubic root of 1310233123 is about 1094.2490832387.

Adding to 1310233123 its reverse (3213320131), we get a palindrome (4523553254).

It can be divided in two parts, 13102 and 33123, that added together give a square (46225 = 215²).

The spelling of 1310233123 in words is "one billion, three hundred ten million, two hundred thirty-three thousand, one hundred twenty-three".