2031201223 has 4 divisors (see below), whose sum is σ = 2050184520. Its totient is φ = 2012217928.

The previous prime is 2031201217. The next prime is 2031201229. The reversal of 2031201223 is 3221021302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221021302 = 2 ⋅1610510651.

It is an interprime number because it is at equal distance from previous prime (2031201217) and next prime (2031201229).

It is a cyclic number.

It is not a de Polignac number, because 2031201223 - 2⁹ = 2031200711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031201197 and 2031201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031201229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9491488 + ... + 9491701.

It is an arithmetic number, because the mean of its divisors is an integer number (512546130).

Almost surely, 2^2031201223 is an apocalyptic number.

2031201223 is a deficient number, since it is larger than the sum of its proper divisors (18983297).

2031201223 is a wasteful number, since it uses less digits than its factorization.

2031201223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18983296.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031201223 is about 45068.8498078218. The cubic root of 2031201223 is about 1266.4391174887.

Adding to 2031201223 its reverse (3221021302), we get a palindrome (5252222525).

The spelling of 2031201223 in words is "two billion, thirty-one million, two hundred one thousand, two hundred twenty-three".