1312103011 has 4 divisors (see below), whose sum is σ = 1369150992. Its totient is φ = 1255055032.

The previous prime is 1312102921. The next prime is 1312103017. The reversal of 1312103011 is 1103012131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312103011 - 2¹¹ = 1312100963 is a prime.

It is a super-2 number, since 2×1312103011² = 3443228622950532242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312102982 and 1312103000.

It is not an unprimeable number, because it can be changed into a prime (1312103017) 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, 28523956 + ... + 28524001.

It is an arithmetic number, because the mean of its divisors is an integer number (342287748).

Almost surely, 2^1312103011 is an apocalyptic number.

1312103011 is a deficient number, since it is larger than the sum of its proper divisors (57047981).

1312103011 is an equidigital number, since it uses as much as digits as its factorization.

1312103011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57047980.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1312103011 is about 36222.9624823813. The cubic root of 1312103011 is about 1094.7693852103.

Adding to 1312103011 its reverse (1103012131), we get a palindrome (2415115142).

The spelling of 1312103011 in words is "one billion, three hundred twelve million, one hundred three thousand, eleven".