131212023113020 has 24 divisors (see below), whose sum is σ = 275546214859104. Its totient is φ = 52484625183936.

The previous prime is 131212023113009. The next prime is 131212023113123. The reversal of 131212023113020 is 20311320212131.

It is a junction number, because it is equal to n+sod(n) for n = 131212023112982 and 131212023113000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5583984 + ... + 17134903.

It is an arithmetic number, because the mean of its divisors is an integer number (11481092285796).

Almost surely, 2^{131212023113020} is an apocalyptic number.

131212023113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131212023113020 is an abundant number, since it is smaller than the sum of its proper divisors (144334191746084).

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

131212023113020 is a wasteful number, since it uses less digits than its factorization.

131212023113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23007669 (or 23007667 counting only the distinct ones).

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

Adding to 131212023113020 its reverse (20311320212131), we get a palindrome (151523343325151).

The spelling of 131212023113020 in words is "one hundred thirty-one trillion, two hundred twelve billion, twenty-three million, one hundred thirteen thousand, twenty".