1203131323 has 16 divisors (see below), whose sum is σ = 1285593120. Its totient is φ = 1124008704.

The previous prime is 1203131309. The next prime is 1203131341. The reversal of 1203131323 is 3231313021.

It is a cyclic number.

It is not a de Polignac number, because 1203131323 - 2²⁹ = 666260411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203131323.

It is not an unprimeable number, because it can be changed into a prime (1203131393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106840 + ... + 117562.

It is an arithmetic number, because the mean of its divisors is an integer number (80349570).

Almost surely, 2^1203131323 is an apocalyptic number.

1203131323 is a deficient number, since it is larger than the sum of its proper divisors (82461797).

1203131323 is a wasteful number, since it uses less digits than its factorization.

1203131323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10878.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1203131323 is about 34686.1834597005. The cubic root of 1203131323 is about 1063.5820794839.

Adding to 1203131323 its reverse (3231313021), we get a palindrome (4434444344).

The spelling of 1203131323 in words is "one billion, two hundred three million, one hundred thirty-one thousand, three hundred twenty-three".