1031303138 has 8 divisors (see below), whose sum is σ = 1547112960. Its totient is φ = 515598820.

The previous prime is 1031303131. The next prime is 1031303167. The reversal of 1031303138 is 8313031301.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1031303131) 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 3 ways as a sum of consecutive naturals, for example, 6023 + ... + 45813.

It is an arithmetic number, because the mean of its divisors is an integer number (193389120).

Almost surely, 2^1031303138 is an apocalyptic number.

1031303138 is a deficient number, since it is larger than the sum of its proper divisors (515809822).

1031303138 is a wasteful number, since it uses less digits than its factorization.

1031303138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52752.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1031303138 is about 32113.9087935430. The cubic root of 1031303138 is about 1010.3273578605.

Adding to 1031303138 its reverse (8313031301), we get a palindrome (9344334439).

The spelling of 1031303138 in words is "one billion, thirty-one million, three hundred three thousand, one hundred thirty-eight".