2102111032311 has 24 divisors (see below), whose sum is σ = 3146325262080. Its totient is φ = 1351489675536.

The previous prime is 2102111032303. The next prime is 2102111032321. The reversal of 2102111032311 is 1132301112012.

2102111032311 is a `hidden beast` number, since 210 + 2 + 1 + 110 + 32 + 311 = 666.

It is not a de Polignac number, because 2102111032311 - 2³ = 2102111032303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102111032321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34347981 + ... + 34409126.

It is an arithmetic number, because the mean of its divisors is an integer number (131096885920).

Almost surely, 2^{2102111032311} is an apocalyptic number.

2102111032311 is a deficient number, since it is larger than the sum of its proper divisors (1044214229769).

2102111032311 is a wasteful number, since it uses less digits than its factorization.

2102111032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68757235 (or 68757232 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2102111032311 its reverse (1132301112012), we get a palindrome (3234412144323).

The spelling of 2102111032311 in words is "two trillion, one hundred two billion, one hundred eleven million, thirty-two thousand, three hundred eleven".