1320425510 has 32 divisors (see below), whose sum is σ = 2447089920. Its totient is φ = 512695008.

The previous prime is 1320425497. The next prime is 1320425543. The reversal of 1320425510 is 155240231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60671 + ... + 79509.

It is an arithmetic number, because the mean of its divisors is an integer number (76471560).

Almost surely, 2^1320425510 is an apocalyptic number.

1320425510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320425510 is a deficient number, since it is larger than the sum of its proper divisors (1126664410).

1320425510 is a wasteful number, since it uses less digits than its factorization.

1320425510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19052.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1320425510 is about 36337.6596659719. The cubic root of 1320425510 is about 1097.0791685322.

Adding to 1320425510 its reverse (155240231), we get a palindrome (1475665741).

The spelling of 1320425510 in words is "one billion, three hundred twenty million, four hundred twenty-five thousand, five hundred ten".