1020312303 has 8 divisors (see below), whose sum is σ = 1373131008. Its totient is φ = 673850904.

The previous prime is 1020312283. The next prime is 1020312353. The reversal of 1020312303 is 3032130201.

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

It is not a de Polignac number, because 1020312303 - 2¹² = 1020308207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020312353) 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 7 ways as a sum of consecutive naturals, for example, 1588951 + ... + 1589592.

It is an arithmetic number, because the mean of its divisors is an integer number (171641376).

Almost surely, 2^1020312303 is an apocalyptic number.

1020312303 is a deficient number, since it is larger than the sum of its proper divisors (352818705).

1020312303 is a wasteful number, since it uses less digits than its factorization.

1020312303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178653.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1020312303 is about 31942.3277642692. The cubic root of 1020312303 is about 1006.7254347931.

Adding to 1020312303 its reverse (3032130201), we get a palindrome (4052442504).

The spelling of 1020312303 in words is "one billion, twenty million, three hundred twelve thousand, three hundred three".