1031304020 has 24 divisors (see below), whose sum is σ = 2166879624. Its totient is φ = 412304256.

The previous prime is 1031304017. The next prime is 1031304023. The reversal of 1031304020 is 204031301.

It is an interprime number because it is at equal distance from previous prime (1031304017) and next prime (1031304023).

It can be written as a sum of positive squares in 4 ways, for example, as 138250564 + 893053456 = 11758^2 + 29884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1031303986 and 1031304004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031304023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28502 + ... + 53618.

It is an arithmetic number, because the mean of its divisors is an integer number (90286651).

Almost surely, 2^1031304020 is an apocalyptic number.

1031304020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031304020 is an abundant number, since it is smaller than the sum of its proper divisors (1135575604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031304020 is a wasteful number, since it uses less digits than its factorization.

1031304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27179 (or 27177 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1031304020 is about 32113.9225259077. The cubic root of 1031304020 is about 1010.3276458807.

Adding to 1031304020 its reverse (204031301), we get a palindrome (1235335321).

The spelling of 1031304020 in words is "one billion, thirty-one million, three hundred four thousand, twenty".