1320102121 has 32 divisors (see below), whose sum is σ = 1524096000. Its totient is φ = 1133352000.

The previous prime is 1320102097. The next prime is 1320102131. The reversal of 1320102121 is 1212010231.

It is a cyclic number.

It is not a de Polignac number, because 1320102121 - 2¹⁵ = 1320069353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320102131) 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 31 ways as a sum of consecutive naturals, for example, 5259246 + ... + 5259496.

It is an arithmetic number, because the mean of its divisors is an integer number (47628000).

Almost surely, 2^1320102121 is an apocalyptic number.

It is an amenable number.

1320102121 is a deficient number, since it is larger than the sum of its proper divisors (203993879).

1320102121 is a wasteful number, since it uses less digits than its factorization.

1320102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1320102121 is about 36333.2096159973. The cubic root of 1320102121 is about 1096.9895983394.

Adding to 1320102121 its reverse (1212010231), we get a palindrome (2532112352).

The spelling of 1320102121 in words is "one billion, three hundred twenty million, one hundred two thousand, one hundred twenty-one".