2031023213 has 8 divisors (see below), whose sum is σ = 2044539000. Its totient is φ = 2017548288.

The previous prime is 2031023209. The next prime is 2031023227. The reversal of 2031023213 is 3123201302.

It can be written as a sum of positive squares in 4 ways, for example, as 641001124 + 1390022089 = 25318^2 + 37283^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2031023213 - 2² = 2031023209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031023191 and 2031023200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031023233) 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, 92945 + ... + 112697.

It is an arithmetic number, because the mean of its divisors is an integer number (255567375).

Almost surely, 2^2031023213 is an apocalyptic number.

It is an amenable number.

2031023213 is a deficient number, since it is larger than the sum of its proper divisors (13515787).

2031023213 is a wasteful number, since it uses less digits than its factorization.

2031023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20431.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2031023213 is about 45066.8748972014. The cubic root of 2031023213 is about 1266.4021204299.

Adding to 2031023213 its reverse (3123201302), we get a palindrome (5154224515).

The spelling of 2031023213 in words is "two billion, thirty-one million, twenty-three thousand, two hundred thirteen".