1313331346 has 4 divisors (see below), whose sum is σ = 1969997022. Its totient is φ = 656665672.

The previous prime is 1313331289. The next prime is 1313331347. The reversal of 1313331346 is 6431333131.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 718508025 + 594823321 = 26805^2 + 24389^2 .

It is not an unprimeable number, because it can be changed into a prime (1313331347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328332835 + ... + 328332838.

Almost surely, 2^1313331346 is an apocalyptic number.

1313331346 is a deficient number, since it is larger than the sum of its proper divisors (656665676).

1313331346 is an equidigital number, since it uses as much as digits as its factorization.

1313331346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656665675.

The product of its digits is 5832, while the sum is 28.

The square root of 1313331346 is about 36239.9137140253. The cubic root of 1313331346 is about 1095.1109041635.

Adding to 1313331346 its reverse (6431333131), we get a palindrome (7744664477).

The spelling of 1313331346 in words is "one billion, three hundred thirteen million, three hundred thirty-one thousand, three hundred forty-six".