1031231303 has 6 divisors (see below), whose sum is σ = 1056998472. Its totient is φ = 1006077680.

The previous prime is 1031231269. The next prime is 1031231309. The reversal of 1031231303 is 3031321301.

It is not a de Polignac number, because 1031231303 - 2⁶ = 1031231239 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 (1031231309) 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, 305051 + ... + 308412.

It is an arithmetic number, because the mean of its divisors is an integer number (176166412).

Almost surely, 2^1031231303 is an apocalyptic number.

1031231303 is a deficient number, since it is larger than the sum of its proper divisors (25767169).

1031231303 is an frugal number, since it uses more digits than its factorization.

1031231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613545 (or 613504 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1031231303 is about 32112.7903334481. The cubic root of 1031231303 is about 1010.3038993356.

Adding to 1031231303 its reverse (3031321301), we get a palindrome (4062552604).

The spelling of 1031231303 in words is "one billion, thirty-one million, two hundred thirty-one thousand, three hundred three".