1320216375 has 32 divisors (see below), whose sum is σ = 2267725824. Its totient is φ = 681396000.

The previous prime is 1320216361. The next prime is 1320216377. The reversal of 1320216375 is 5736120231.

It is not a de Polignac number, because 1320216375 - 2¹⁸ = 1319954231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320216377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45159 + ... + 68408.

It is an arithmetic number, because the mean of its divisors is an integer number (70866432).

Almost surely, 2^1320216375 is an apocalyptic number.

1320216375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1320216375 is a deficient number, since it is larger than the sum of its proper divisors (947509449).

1320216375 is a wasteful number, since it uses less digits than its factorization.

1320216375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113616 (or 113606 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1320216375 is about 36334.7818900843. The cubic root of 1320216375 is about 1097.0212453440.

The spelling of 1320216375 in words is "one billion, three hundred twenty million, two hundred sixteen thousand, three hundred seventy-five".