1312320011 has 8 divisors (see below), whose sum is σ = 1333373184. Its totient is φ = 1291429800.

The previous prime is 1312320007. The next prime is 1312320017. The reversal of 1312320011 is 1100232131.

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 1312320011 - 2² = 1312320007 is a prime.

It is a super-2 number, since 2×1312320011² = 3444367622542080242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312320017) 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, 24455 + ... + 56768.

It is an arithmetic number, because the mean of its divisors is an integer number (166671648).

Almost surely, 2^1312320011 is an apocalyptic number.

1312320011 is a deficient number, since it is larger than the sum of its proper divisors (21053173).

1312320011 is a wasteful number, since it uses less digits than its factorization.

1312320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81481.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312320011 is about 36225.9576961052. The cubic root of 1312320011 is about 1094.8297340954.

Adding to 1312320011 its reverse (1100232131), we get a palindrome (2412552142).

The spelling of 1312320011 in words is "one billion, three hundred twelve million, three hundred twenty thousand, eleven".