1202311323 has 16 divisors (see below), whose sum is σ = 1791874560. Its totient is φ = 796738248.

The previous prime is 1202311321. The next prime is 1202311339. The reversal of 1202311323 is 3231132021.

It is not a de Polignac number, because 1202311323 - 2¹ = 1202311321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202311296 and 1202311305.

It is not an unprimeable number, because it can be changed into a prime (1202311321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128815 + ... + 137832.

It is an arithmetic number, because the mean of its divisors is an integer number (111992160).

Almost surely, 2^1202311323 is an apocalyptic number.

1202311323 is a deficient number, since it is larger than the sum of its proper divisors (589563237).

1202311323 is a wasteful number, since it uses less digits than its factorization.

1202311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266823 (or 266817 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1202311323 is about 34674.3611765235. The cubic root of 1202311323 is about 1063.3403947234.

Adding to 1202311323 its reverse (3231132021), we get a palindrome (4433443344).

The spelling of 1202311323 in words is "one billion, two hundred two million, three hundred eleven thousand, three hundred twenty-three".