131313231020100 has 36 divisors (see below), whose sum is σ = 379932948419024. Its totient is φ = 35016861605280.

The previous prime is 131313231020093. The next prime is 131313231020129. The reversal of 131313231020100 is 1020132313131.

It is a happy 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, 218855384734 + ... + 218855385333.

Almost surely, 2^{131313231020100} is an apocalyptic number.

131313231020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131313231020100 is an abundant number, since it is smaller than the sum of its proper divisors (248619717398924).

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

131313231020100 is a wasteful number, since it uses less digits than its factorization.

131313231020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437710770084 (or 437710770077 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131313231020100 its reverse (1020132313131), we get a palindrome (132333363333231).

The spelling of 131313231020100 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred thirty-one million, twenty thousand, one hundred".