1310423403 has 8 divisors (see below), whose sum is σ = 1784406528. Its totient is φ = 855027944.

The previous prime is 1310423399. The next prime is 1310423419. The reversal of 1310423403 is 3043240131.

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 1310423403 - 2² = 1310423399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310423403.

It is not an unprimeable number, because it can be changed into a prime (1310423423) 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, 4646751 + ... + 4647032.

It is an arithmetic number, because the mean of its divisors is an integer number (223050816).

Almost surely, 2^1310423403 is an apocalyptic number.

1310423403 is a deficient number, since it is larger than the sum of its proper divisors (473983125).

1310423403 is an equidigital number, since it uses as much as digits as its factorization.

1310423403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293833.

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

The square root of 1310423403 is about 36199.7707589427. The cubic root of 1310423403 is about 1094.3020518373.

Adding to 1310423403 its reverse (3043240131), we get a palindrome (4353663534).

The spelling of 1310423403 in words is "one billion, three hundred ten million, four hundred twenty-three thousand, four hundred three".