2100010111011 has 18 divisors (see below), whose sum is σ = 3141552988860. Its totient is φ = 1351730641296.

The previous prime is 2100010110973. The next prime is 2100010111091. The reversal of 2100010111011 is 1101110100012.

It is not a de Polignac number, because 2100010111011 - 2¹³ = 2100010102819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2100010110984 and 2100010111002.

It is not an unprimeable number, because it can be changed into a prime (2100010111091) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 138716841 + ... + 138731978.

Almost surely, 2^{2100010111011} is an apocalyptic number.

2100010111011 is a deficient number, since it is larger than the sum of its proper divisors (1041542877849).

2100010111011 is a wasteful number, since it uses less digits than its factorization.

2100010111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277448883 (or 277448851 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 2100010111011 its reverse (1101110100012), we get a palindrome (3201120211023).

The spelling of 2100010111011 in words is "two trillion, one hundred billion, ten million, one hundred eleven thousand, eleven".