1001230111121 has 16 divisors (see below), whose sum is σ = 1031197547520. Its totient is φ = 971787487440.

The previous prime is 1001230111111. The next prime is 1001230111157. The reversal of 1001230111121 is 1211110321001.

It is a cyclic number.

It is not a de Polignac number, because 1001230111121 - 2¹⁴ = 1001230094737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001230111096 and 1001230111105.

It is not an unprimeable number, because it can be changed into a prime (1001230111111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1367540 + ... + 1967898.

It is an arithmetic number, because the mean of its divisors is an integer number (64449846720).

Almost surely, 2^{1001230111121} is an apocalyptic number.

It is an amenable number.

1001230111121 is a deficient number, since it is larger than the sum of its proper divisors (29967436399).

1001230111121 is an equidigital number, since it uses as much as digits as its factorization.

1001230111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600796.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1001230111121 its reverse (1211110321001), we get a palindrome (2212340432122).

The spelling of 1001230111121 in words is "one trillion, one billion, two hundred thirty million, one hundred eleven thousand, one hundred twenty-one".