1311322244100 has 72 divisors (see below), whose sum is σ = 4139009857248. Its totient is φ = 317896300800.

The previous prime is 1311322244033. The next prime is 1311322244101. The reversal of 1311322244100 is 14422231131.

It is a super-3 number, since 3×1311322244100³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311322244101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198681889 + ... + 198688488.

Almost surely, 2^{1311322244100} is an apocalyptic number.

1311322244100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311322244100 is an abundant number, since it is smaller than the sum of its proper divisors (2827687613148).

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

1311322244100 is a wasteful number, since it uses less digits than its factorization.

1311322244100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397370405 (or 397370398 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1311322244100 its reverse (14422231131), we get a palindrome (1325744475231).

The spelling of 1311322244100 in words is "one trillion, three hundred eleven billion, three hundred twenty-two million, two hundred forty-four thousand, one hundred".