1302113123 has 4 divisors (see below), whose sum is σ = 1302283560. Its totient is φ = 1301942688.

The previous prime is 1302113117. The next prime is 1302113167. The reversal of 1302113123 is 3213112031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3213112031 = 23887 ⋅134513.

It is a cyclic number.

It is not a de Polignac number, because 1302113123 - 2⁴ = 1302113107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302113723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73193 + ... + 89226.

It is an arithmetic number, because the mean of its divisors is an integer number (325570890).

Almost surely, 2^1302113123 is an apocalyptic number.

1302113123 is a deficient number, since it is larger than the sum of its proper divisors (170437).

1302113123 is an equidigital number, since it uses as much as digits as its factorization.

1302113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170436.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1302113123 is about 36084.8045997204. The cubic root of 1302113123 is about 1091.9839084315.

Adding to 1302113123 its reverse (3213112031), we get a palindrome (4515225154).

The spelling of 1302113123 in words is "one billion, three hundred two million, one hundred thirteen thousand, one hundred twenty-three".