1321031300121 has 48 divisors (see below), whose sum is σ = 2090229261120. Its totient is φ = 798986897280.

The previous prime is 1321031300111. The next prime is 1321031300131. The reversal of 1321031300121 is 1210031301231.

1321031300121 is a `hidden beast` number, since 1 + 3 + 210 + 31 + 300 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (1321031300111) and next prime (1321031300131).

It is not a de Polignac number, because 1321031300121 - 2³⁸ = 1046153393177 is a prime.

It is a super-2 number, since 2×1321031300121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321031300094 and 1321031300103.

It is not an unprimeable number, because it can be changed into a prime (1321031300111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35511151 + ... + 35548331.

It is an arithmetic number, because the mean of its divisors is an integer number (43546442940).

Almost surely, 2^{1321031300121} is an apocalyptic number.

It is an amenable number.

1321031300121 is a deficient number, since it is larger than the sum of its proper divisors (769197960999).

1321031300121 is a wasteful number, since it uses less digits than its factorization.

1321031300121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42406 (or 42403 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1321031300121 its reverse (1210031301231), we get a palindrome (2531062601352).

The spelling of 1321031300121 in words is "one trillion, three hundred twenty-one billion, thirty-one million, three hundred thousand, one hundred twenty-one".