2111312101012 has 6 divisors (see below), whose sum is σ = 3694796176778. Its totient is φ = 1055656050504.

The previous prime is 2111312101009. The next prime is 2111312101033. The reversal of 2111312101012 is 2101012131112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2103880626576 + 7431474436 = 1450476^2 + 86206^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263914012623 + ... + 263914012630.

Almost surely, 2^{2111312101012} is an apocalyptic number.

It is an amenable number.

2111312101012 is a deficient number, since it is larger than the sum of its proper divisors (1583484075766).

2111312101012 is a wasteful number, since it uses less digits than its factorization.

2111312101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527828025257 (or 527828025255 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 2111312101012 its reverse (2101012131112), we get a palindrome (4212324232124).

The spelling of 2111312101012 in words is "two trillion, one hundred eleven billion, three hundred twelve million, one hundred one thousand, twelve".