1302312423 has 4 divisors (see below), whose sum is σ = 1736416568. Its totient is φ = 868208280.

The previous prime is 1302312419. The next prime is 1302312439. The reversal of 1302312423 is 3242132031.

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

It is not a de Polignac number, because 1302312423 - 2² = 1302312419 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 1302312423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302312023) 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, 217052068 + ... + 217052073.

It is an arithmetic number, because the mean of its divisors is an integer number (434104142).

Almost surely, 2^1302312423 is an apocalyptic number.

1302312423 is a deficient number, since it is larger than the sum of its proper divisors (434104145).

1302312423 is an equidigital number, since it uses as much as digits as its factorization.

1302312423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434104144.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1302312423 is about 36087.5660442762. The cubic root of 1302312423 is about 1092.0396182073.

Adding to 1302312423 its reverse (3242132031), we get a palindrome (4544444454).

The spelling of 1302312423 in words is "one billion, three hundred two million, three hundred twelve thousand, four hundred twenty-three".