1311420306100 has 36 divisors (see below), whose sum is σ = 2847034551564. Its totient is φ = 524337249280.

The previous prime is 1311420306083. The next prime is 1311420306113. The reversal of 1311420306100 is 16030241131.

It can be written as a sum of positive squares in 6 ways, for example, as 106750224 + 1311313555876 = 10332^2 + 1145126^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2657479 + ... + 3112078.

It is an arithmetic number, because the mean of its divisors is an integer number (79084293099).

Almost surely, 2^{1311420306100} is an apocalyptic number.

1311420306100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311420306100 is an abundant number, since it is smaller than the sum of its proper divisors (1535614245464).

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

1311420306100 is a wasteful number, since it uses less digits than its factorization.

1311420306100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771844 (or 5771837 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1311420306100 its reverse (16030241131), we get a palindrome (1327450547231).

The spelling of 1311420306100 in words is "one trillion, three hundred eleven billion, four hundred twenty million, three hundred six thousand, one hundred".