1113321202121 has 8 divisors (see below), whose sum is σ = 1139380149600. Its totient is φ = 1087269880032.

The previous prime is 1113321202087. The next prime is 1113321202129. The reversal of 1113321202121 is 1212021233111.

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

It is a cyclic number.

It is not a de Polignac number, because 1113321202121 - 2¹⁸ = 1113320939977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113321202093 and 1113321202102.

It is not an unprimeable number, because it can be changed into a prime (1113321202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610396 + ... + 2195453.

It is an arithmetic number, because the mean of its divisors is an integer number (142422518700).

Almost surely, 2^{1113321202121} is an apocalyptic number.

It is an amenable number.

1113321202121 is a deficient number, since it is larger than the sum of its proper divisors (26058947479).

1113321202121 is an equidigital number, since it uses as much as digits as its factorization.

1113321202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812695.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1113321202121 its reverse (1212021233111), we get a palindrome (2325342435232).

The spelling of 1113321202121 in words is "one trillion, one hundred thirteen billion, three hundred twenty-one million, two hundred two thousand, one hundred twenty-one".