2111323430101 has 4 divisors (see below), whose sum is σ = 2111587584652. Its totient is φ = 2111059275552.

The previous prime is 2111323430071. The next prime is 2111323430107. The reversal of 2111323430101 is 1010343231112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 465875867601 + 1645447562500 = 682551^2 + 1282750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111323430101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111323430107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132065286 + ... + 132081271.

It is an arithmetic number, because the mean of its divisors is an integer number (527896896163).

Almost surely, 2^{2111323430101} is an apocalyptic number.

It is an amenable number.

2111323430101 is a deficient number, since it is larger than the sum of its proper divisors (264154551).

2111323430101 is an equidigital number, since it uses as much as digits as its factorization.

2111323430101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264154550.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2111323430101 its reverse (1010343231112), we get a palindrome (3121666661213).

The spelling of 2111323430101 in words is "two trillion, one hundred eleven billion, three hundred twenty-three million, four hundred thirty thousand, one hundred one".