1311130643260 has 12 divisors (see below), whose sum is σ = 2753374350888. Its totient is φ = 524452257296.

The previous prime is 1311130643149. The next prime is 1311130643261. The reversal of 1311130643260 is 623460311131.

It is a super-3 number, since 3×1311130643260³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311130643261) 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, 32778266062 + ... + 32778266101.

It is an arithmetic number, because the mean of its divisors is an integer number (229447862574).

Almost surely, 2^{1311130643260} is an apocalyptic number.

1311130643260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311130643260 is an abundant number, since it is smaller than the sum of its proper divisors (1442243707628).

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

1311130643260 is a wasteful number, since it uses less digits than its factorization.

1311130643260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65556532172 (or 65556532170 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 1311130643260 its reverse (623460311131), we get a palindrome (1934590954391).

The spelling of 1311130643260 in words is "one trillion, three hundred eleven billion, one hundred thirty million, six hundred forty-three thousand, two hundred sixty".