213111130012 has 24 divisors (see below), whose sum is σ = 407000385792. Its totient is φ = 96832537200.

The previous prime is 213111130003. The next prime is 213111130051. The reversal of 213111130012 is 210031111312.

It is a happy number.

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, 784564 + ... + 1020667.

It is an arithmetic number, because the mean of its divisors is an integer number (16958349408).

Almost surely, 2^213111130012 is an apocalyptic number.

213111130012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213111130012 is a deficient number, since it is larger than the sum of its proper divisors (193889255780).

213111130012 is a wasteful number, since it uses less digits than its factorization.

213111130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807929 (or 1807927 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 213111130012 its reverse (210031111312), we get a palindrome (423142241324).

It can be divided in two parts, 2131111300 and 12, that added together give a palindrome (2131111312).

The spelling of 213111130012 in words is "two hundred thirteen billion, one hundred eleven million, one hundred thirty thousand, twelve".