1302312320123 has 4 divisors (see below), whose sum is σ = 1318002830088. Its totient is φ = 1286621810160.

The previous prime is 1302312320069. The next prime is 1302312320149. The reversal of 1302312320123 is 3210232132031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1302312320123 - 2¹² = 1302312316027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302312322123) 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, 7845254858 + ... + 7845255023.

It is an arithmetic number, because the mean of its divisors is an integer number (329500707522).

Almost surely, 2^{1302312320123} is an apocalyptic number.

1302312320123 is a deficient number, since it is larger than the sum of its proper divisors (15690509965).

1302312320123 is an equidigital number, since it uses as much as digits as its factorization.

1302312320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15690509964.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1302312320123 its reverse (3210232132031), we get a palindrome (4512544452154).

The spelling of 1302312320123 in words is "one trillion, three hundred two billion, three hundred twelve million, three hundred twenty thousand, one hundred twenty-three".