1310451323 has 4 divisors (see below), whose sum is σ = 1311738360. Its totient is φ = 1309164288.

The previous prime is 1310451319. The next prime is 1310451343. The reversal of 1310451323 is 3231540131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3231540131 = 47 ⋅68756173.

It is a cyclic number.

It is not a de Polignac number, because 1310451323 - 2² = 1310451319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310451343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641990 + ... + 644027.

It is an arithmetic number, because the mean of its divisors is an integer number (327934590).

Almost surely, 2^1310451323 is an apocalyptic number.

1310451323 is a deficient number, since it is larger than the sum of its proper divisors (1287037).

1310451323 is a wasteful number, since it uses less digits than its factorization.

1310451323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287036.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1310451323 is about 36200.1563946898. The cubic root of 1310451323 is about 1094.3098235484.

Adding to 1310451323 its reverse (3231540131), we get a palindrome (4541991454).

The spelling of 1310451323 in words is "one billion, three hundred ten million, four hundred fifty-one thousand, three hundred twenty-three".