212020113131 has 8 divisors (see below), whose sum is σ = 213908197344. Its totient is φ = 210132236160.

The previous prime is 212020113121. The next prime is 212020113133. The reversal of 212020113131 is 131311020212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212020113131 is a prime.

It is a super-2 number, since 2×212020113131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212020113133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607665 + ... + 2687741.

It is an arithmetic number, because the mean of its divisors is an integer number (26738524668).

Almost surely, 2^212020113131 is an apocalyptic number.

212020113131 is a deficient number, since it is larger than the sum of its proper divisors (1888084213).

212020113131 is a wasteful number, since it uses less digits than its factorization.

212020113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103621.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212020113131 its reverse (131311020212), we get a palindrome (343331133343).

The spelling of 212020113131 in words is "two hundred twelve billion, twenty million, one hundred thirteen thousand, one hundred thirty-one".