1121120302121 has 4 divisors (see below), whose sum is σ = 1140122341200. Its totient is φ = 1102118263044.

The previous prime is 1121120302117. The next prime is 1121120302157. The reversal of 1121120302121 is 1212030211211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121120302121 - 2² = 1121120302117 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 1121120302121.

It is not an unprimeable number, because it can be changed into a prime (1121120301121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9501019451 + ... + 9501019568.

It is an arithmetic number, because the mean of its divisors is an integer number (285030585300).

Almost surely, 2^{1121120302121} is an apocalyptic number.

It is an amenable number.

1121120302121 is a deficient number, since it is larger than the sum of its proper divisors (19002039079).

1121120302121 is an equidigital number, since it uses as much as digits as its factorization.

1121120302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19002039078.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121120302121 its reverse (1212030211211), we get a palindrome (2333150513332).

It can be divided in two parts, 1121120 and 302121, that added together give a palindrome (1423241).

The spelling of 1121120302121 in words is "one trillion, one hundred twenty-one billion, one hundred twenty million, three hundred two thousand, one hundred twenty-one".