2120231101 has 4 divisors (see below), whose sum is σ = 2128055104. Its totient is φ = 2112407100.

The previous prime is 2120231089. The next prime is 2120231117. The reversal of 2120231101 is 1011320212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120231101 - 2¹⁷ = 2120100029 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 (2120231171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3911595 + ... + 3912136.

It is an arithmetic number, because the mean of its divisors is an integer number (532013776).

Almost surely, 2^2120231101 is an apocalyptic number.

It is an amenable number.

2120231101 is a deficient number, since it is larger than the sum of its proper divisors (7824003).

2120231101 is an equidigital number, since it uses as much as digits as its factorization.

2120231101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824002.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120231101 is about 46045.9672609882. The cubic root of 2120231101 is about 1284.6783352084.

Adding to 2120231101 its reverse (1011320212), we get a palindrome (3131551313).

The spelling of 2120231101 in words is "two billion, one hundred twenty million, two hundred thirty-one thousand, one hundred one".