2131231200223 has 4 divisors (see below), whose sum is σ = 2136545991648. Its totient is φ = 2125916408800.

The previous prime is 2131231200199. The next prime is 2131231200227. The reversal of 2131231200223 is 3220021321312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131231200223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131231200194 and 2131231200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131231200227) 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, 2657395111 + ... + 2657395912.

It is an arithmetic number, because the mean of its divisors is an integer number (534136497912).

Almost surely, 2^{2131231200223} is an apocalyptic number.

2131231200223 is a deficient number, since it is larger than the sum of its proper divisors (5314791425).

2131231200223 is an equidigital number, since it uses as much as digits as its factorization.

2131231200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314791424.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2131231200223 its reverse (3220021321312), we get a palindrome (5351252521535).

The spelling of 2131231200223 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred thousand, two hundred twenty-three".