2101110021983 has 12 divisors (see below), whose sum is σ = 2447635092552. Its totient is φ = 1798382300400.

The previous prime is 2101110021977. The next prime is 2101110022031. The reversal of 2101110021983 is 3891200111012.

It is a happy number.

It is not a de Polignac number, because 2101110021983 - 2⁶ = 2101110021919 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 (2101110021953) 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, 30550385 + ... + 30619082.

It is an arithmetic number, because the mean of its divisors is an integer number (203969591046).

Almost surely, 2^{2101110021983} is an apocalyptic number.

2101110021983 is a deficient number, since it is larger than the sum of its proper divisors (346525070569).

2101110021983 is an equidigital number, since it uses as much as digits as its factorization.

2101110021983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61170182 (or 61170175 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 29.

Adding to 2101110021983 its reverse (3891200111012), we get a palindrome (5992310132995).

The spelling of 2101110021983 in words is "two trillion, one hundred one billion, one hundred ten million, twenty-one thousand, nine hundred eighty-three".