2311203253 has 4 divisors (see below), whose sum is σ = 2311313760. Its totient is φ = 2311092748.

The previous prime is 2311203217. The next prime is 2311203269. The reversal of 2311203253 is 3523021132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311203253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311204253) 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, 13225 + ... + 69262.

It is an arithmetic number, because the mean of its divisors is an integer number (577828440).

Almost surely, 2^2311203253 is an apocalyptic number.

It is an amenable number.

2311203253 is a deficient number, since it is larger than the sum of its proper divisors (110507).

2311203253 is an equidigital number, since it uses as much as digits as its factorization.

2311203253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110506.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2311203253 is about 48074.9753302069. The cubic root of 2311203253 is about 1322.1458922365.

Adding to 2311203253 its reverse (3523021132), we get a palindrome (5834224385).

The spelling of 2311203253 in words is "two billion, three hundred eleven million, two hundred three thousand, two hundred fifty-three".