2031223313 has 6 divisors (see below), whose sum is σ = 2362851666. Its totient is φ = 1741048512.

The previous prime is 2031223303. The next prime is 2031223331. The reversal of 2031223313 is 3133221302.

It can be written as a sum of positive squares in only one way, i.e., 2022121024 + 9102289 = 44968^2 + 3017^2 .

It is not a de Polignac number, because 2031223313 - 2⁴ = 2031223297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2031223303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20726720 + ... + 20726817.

It is an arithmetic number, because the mean of its divisors is an integer number (393808611).

Almost surely, 2^2031223313 is an apocalyptic number.

It is an amenable number.

2031223313 is a deficient number, since it is larger than the sum of its proper divisors (331628353).

2031223313 is an equidigital number, since it uses as much as digits as its factorization.

2031223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41453551 (or 41453544 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2031223313 is about 45069.0948766447. The cubic root of 2031223313 is about 1266.4437084566.

Adding to 2031223313 its reverse (3133221302), we get a palindrome (5164444615).

The spelling of 2031223313 in words is "two billion, thirty-one million, two hundred twenty-three thousand, three hundred thirteen".