1320102987 has 8 divisors (see below), whose sum is σ = 2011585536. Its totient is φ = 754344552.

The previous prime is 1320102961. The next prime is 1320103007. The reversal of 1320102987 is 7892010231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320102987 - 2⁶ = 1320102923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320102907) 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, 31431003 + ... + 31431044.

It is an arithmetic number, because the mean of its divisors is an integer number (251448192).

Almost surely, 2^1320102987 is an apocalyptic number.

1320102987 is a deficient number, since it is larger than the sum of its proper divisors (691482549).

1320102987 is an equidigital number, since it uses as much as digits as its factorization.

1320102987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62862057.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1320102987 is about 36333.2215334671. The cubic root of 1320102987 is about 1096.9898382180.

The spelling of 1320102987 in words is "one billion, three hundred twenty million, one hundred two thousand, nine hundred eighty-seven".