2100231320109 has 48 divisors (see below), whose sum is σ = 3106864926144. Its totient is φ = 1260675187200.

The previous prime is 2100231320069. The next prime is 2100231320137. The reversal of 2100231320109 is 9010231320012.

It is not a de Polignac number, because 2100231320109 - 2¹¹ = 2100231318061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100231322109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192835554 + ... + 192846444.

It is an arithmetic number, because the mean of its divisors is an integer number (64726352628).

Almost surely, 2^{2100231320109} is an apocalyptic number.

It is an amenable number.

2100231320109 is a deficient number, since it is larger than the sum of its proper divisors (1006633606035).

2100231320109 is a wasteful number, since it uses less digits than its factorization.

2100231320109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20238 (or 20225 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 2100231320109 in words is "two trillion, one hundred billion, two hundred thirty-one million, three hundred twenty thousand, one hundred nine".