1311103023464 has 24 divisors (see below), whose sum is σ = 2661965830710. Its totient is φ = 605124471744.

The previous prime is 1311103023409. The next prime is 1311103023469. The reversal of 1311103023464 is 4643203011131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 521240680900 + 789862342564 = 721970^2 + 888742^2 .

It is a super-2 number, since 2×1311103023464² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311103023469) 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 5 ways as a sum of consecutive naturals, for example, 484874027 + ... + 484876730.

Almost surely, 2^{1311103023464} is an apocalyptic number.

It is an amenable number.

1311103023464 is an abundant number, since it is smaller than the sum of its proper divisors (1350862807246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311103023464 is a wasteful number, since it uses less digits than its factorization.

1311103023464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969750789 (or 969750772 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 1311103023464 its reverse (4643203011131), we get a palindrome (5954306034595).

The spelling of 1311103023464 in words is "one trillion, three hundred eleven billion, one hundred three million, twenty-three thousand, four hundred sixty-four".