212040440131311 has 16 divisors (see below), whose sum is σ = 342691620414720. Its totient is φ = 128509357655160.

The previous prime is 212040440131297. The next prime is 212040440131327. The reversal of 212040440131311 is 113131044040212.

It is a happy number.

212040440131311 is a `hidden beast` number, since 2 + 1 + 20 + 40 + 440 + 131 + 31 + 1 = 666.

It is not a de Polignac number, because 212040440131311 - 2²⁶ = 212040373022447 is a prime.

It is a super-2 number, since 2×212040440131311² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212040440131811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356970437635 + ... + 356970438228.

It is an arithmetic number, because the mean of its divisors is an integer number (21418226275920).

Almost surely, 2^{212040440131311} is an apocalyptic number.

212040440131311 is a deficient number, since it is larger than the sum of its proper divisors (130651180283409).

212040440131311 is a wasteful number, since it uses less digits than its factorization.

212040440131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713940875883 (or 713940875877 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 212040440131311 its reverse (113131044040212), we get a palindrome (325171484171523).

The spelling of 212040440131311 in words is "two hundred twelve trillion, forty billion, four hundred forty million, one hundred thirty-one thousand, three hundred eleven".