1320103210121 has 32 divisors (see below), whose sum is σ = 1402311398400. Its totient is φ = 1240651883520.

The previous prime is 1320103210073. The next prime is 1320103210157. The reversal of 1320103210121 is 1210123010231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320103210121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320103210121.

It is not an unprimeable number, because it can be changed into a prime (1320103216121) 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, 301873691 + ... + 301878063.

It is an arithmetic number, because the mean of its divisors is an integer number (43822231200).

Almost surely, 2^{1320103210121} is an apocalyptic number.

It is an amenable number.

1320103210121 is a deficient number, since it is larger than the sum of its proper divisors (82208188279).

1320103210121 is a wasteful number, since it uses less digits than its factorization.

1320103210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1320103210121 its reverse (1210123010231), we get a palindrome (2530226220352).

The spelling of 1320103210121 in words is "one trillion, three hundred twenty billion, one hundred three million, two hundred ten thousand, one hundred twenty-one".