1121201112321 has 48 divisors (see below), whose sum is σ = 1768323211200. Its totient is φ = 707953151808.

The previous prime is 1121201112271. The next prime is 1121201112329. The reversal of 1121201112321 is 1232111021211.

It is a happy number.

1121201112321 is a `hidden beast` number, since 11 + 21 + 201 + 112 + 321 = 666.

It is not a de Polignac number, because 1121201112321 - 2¹⁵ = 1121201079553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121201112294 and 1121201112303.

It is not an unprimeable number, because it can be changed into a prime (1121201112329) 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, 20273335 + ... + 20328563.

It is an arithmetic number, because the mean of its divisors is an integer number (36840066900).

Almost surely, 2^{1121201112321} is an apocalyptic number.

It is an amenable number.

1121201112321 is a deficient number, since it is larger than the sum of its proper divisors (647122098879).

1121201112321 is an equidigital number, since it uses as much as digits as its factorization.

1121201112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59660 (or 59648 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1121201112321 its reverse (1232111021211), we get a palindrome (2353312133532).

The spelling of 1121201112321 in words is "one trillion, one hundred twenty-one billion, two hundred one million, one hundred twelve thousand, three hundred twenty-one".