210100001011111 has 12 divisors (see below), whose sum is σ = 219632665235760. Its totient is φ = 200964562198400.

The previous prime is 210100001011091. The next prime is 210100001011183. The reversal of 210100001011111 is 111110100001012.

It is not a de Polignac number, because 210100001011111 - 2¹⁹ = 210100000486823 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 (210100001011711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261961911 + ... + 262762711.

It is an arithmetic number, because the mean of its divisors is an integer number (18302722102980).

Almost surely, 2^{210100001011111} is an apocalyptic number.

210100001011111 is a deficient number, since it is larger than the sum of its proper divisors (9532664224649).

210100001011111 is an equidigital number, since it uses as much as digits as its factorization.

210100001011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296806 (or 1296783 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 210100001011111 its reverse (111110100001012), we get a palindrome (321210101012123).

The spelling of 210100001011111 in words is "two hundred ten trillion, one hundred billion, one million, eleven thousand, one hundred eleven".