1012320425 has 6 divisors (see below), whose sum is σ = 1255277358. Its totient is φ = 809856320.

The previous prime is 1012320349. The next prime is 1012320431. The reversal of 1012320425 is 5240232101.

1012320425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 131239936 + 881080489 = 11456^2 + 29683^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1012320425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012320397 and 1012320406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20246384 + ... + 20246433.

It is an arithmetic number, because the mean of its divisors is an integer number (209212893).

Almost surely, 2^1012320425 is an apocalyptic number.

It is an amenable number.

1012320425 is a deficient number, since it is larger than the sum of its proper divisors (242956933).

1012320425 is an equidigital number, since it uses as much as digits as its factorization.

1012320425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40492827 (or 40492822 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1012320425 is about 31816.9832793746. The cubic root of 1012320425 is about 1004.0900569605.

Adding to 1012320425 its reverse (5240232101), we get a palindrome (6252552526).

The spelling of 1012320425 in words is "one billion, twelve million, three hundred twenty thousand, four hundred twenty-five".