1320550512 has 20 divisors (see below), whose sum is σ = 3411422280. Its totient is φ = 440183488.

The previous prime is 1320550477. The next prime is 1320550519. The reversal of 1320550512 is 2150550231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320550519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13755687 + ... + 13755782.

It is an arithmetic number, because the mean of its divisors is an integer number (170571114).

Almost surely, 2^1320550512 is an apocalyptic number.

1320550512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320550512 is an abundant number, since it is smaller than the sum of its proper divisors (2090871768).

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

1320550512 is a wasteful number, since it uses less digits than its factorization.

1320550512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27511480 (or 27511474 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1320550512 is about 36339.3796314687. The cubic root of 1320550512 is about 1097.1137868584.

The spelling of 1320550512 in words is "one billion, three hundred twenty million, five hundred fifty thousand, five hundred twelve".