211031111313012 has 48 divisors (see below), whose sum is σ = 492549258048512. Its totient is φ = 70323230855520.

The previous prime is 211031111312977. The next prime is 211031111313017. The reversal of 211031111313012 is 210313111130112.

It is a super-2 number, since 2×211031111313012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211031111313012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031111313017) 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, 577245903 + ... + 577611369.

Almost surely, 2^{211031111313012} is an apocalyptic number.

It is an amenable number.

211031111313012 is an abundant number, since it is smaller than the sum of its proper divisors (281518146735500).

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

211031111313012 is a wasteful number, since it uses less digits than its factorization.

211031111313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379348 (or 379346 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 211031111313012 its reverse (210313111130112), we get a palindrome (421344222443124).

The spelling of 211031111313012 in words is "two hundred eleven trillion, thirty-one billion, one hundred eleven million, three hundred thirteen thousand, twelve".