2131240223 has 8 divisors (see below), whose sum is σ = 2437582848. Its totient is φ = 1825367544.

The previous prime is 2131240217. The next prime is 2131240273. The reversal of 2131240223 is 3220421312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2131240223 - 2²⁴ = 2114463007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131240195 and 2131240204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131240273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107711 + ... + 125952.

It is an arithmetic number, because the mean of its divisors is an integer number (304697856).

Almost surely, 2^2131240223 is an apocalyptic number.

2131240223 is a deficient number, since it is larger than the sum of its proper divisors (306342625).

2131240223 is a wasteful number, since it uses less digits than its factorization.

2131240223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234973.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2131240223 is about 46165.3573905802. The cubic root of 2131240223 is about 1286.8980259132.

Adding to 2131240223 its reverse (3220421312), we get a palindrome (5351661535).

The spelling of 2131240223 in words is "two billion, one hundred thirty-one million, two hundred forty thousand, two hundred twenty-three".