1330313331 has 4 divisors (see below), whose sum is σ = 1773751112. Its totient is φ = 886875552.

The previous prime is 1330313321. The next prime is 1330313339. The reversal of 1330313331 is 1333130331.

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

It is not a de Polignac number, because 1330313331 - 2²¹ = 1328216179 is a prime.

It is a super-2 number, since 2×1330313331² = 3539467117272631122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330313298 and 1330313307.

It is not an unprimeable number, because it can be changed into a prime (1330313339) 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, 221718886 + ... + 221718891.

It is an arithmetic number, because the mean of its divisors is an integer number (443437778).

Almost surely, 2^1330313331 is an apocalyptic number.

1330313331 is a deficient number, since it is larger than the sum of its proper divisors (443437781).

1330313331 is an equidigital number, since it uses as much as digits as its factorization.

1330313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443437780.

The product of its (nonzero) digits is 729, while the sum is 21.

The square root of 1330313331 is about 36473.4606392100. The cubic root of 1330313331 is about 1099.8108024465.

Adding to 1330313331 its reverse (1333130331), we get a palindrome (2663443662).

The spelling of 1330313331 in words is "one billion, three hundred thirty million, three hundred thirteen thousand, three hundred thirty-one".