2100342045311 has 4 divisors (see below), whose sum is σ = 2100345086952. Its totient is φ = 2100339003672.

The previous prime is 2100342045299. The next prime is 2100342045313. The reversal of 2100342045311 is 1135402430012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2100342045311 - 2¹⁸ = 2100341783167 is a prime.

It is a super-2 number, since 2×2100342045311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100342045313) 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, 68861 + ... + 2050713.

It is an arithmetic number, because the mean of its divisors is an integer number (525086271738).

Almost surely, 2^{2100342045311} is an apocalyptic number.

2100342045311 is a deficient number, since it is larger than the sum of its proper divisors (3041641).

2100342045311 is a wasteful number, since it uses less digits than its factorization.

2100342045311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041640.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 2100342045311 its reverse (1135402430012), we get a palindrome (3235744475323).

The spelling of 2100342045311 in words is "two trillion, one hundred billion, three hundred forty-two million, forty-five thousand, three hundred eleven".