121120330221311 has 4 divisors (see below), whose sum is σ = 121151331077592. Its totient is φ = 121089329365032.

The previous prime is 121120330221269. The next prime is 121120330221337. The reversal of 121120330221311 is 113122033021121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121120330221311 - 2¹⁰ = 121120330220287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120330221391) 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, 15500422280 + ... + 15500430093.

It is an arithmetic number, because the mean of its divisors is an integer number (30287832769398).

Almost surely, 2^{121120330221311} is an apocalyptic number.

121120330221311 is a deficient number, since it is larger than the sum of its proper divisors (31000856281).

121120330221311 is an equidigital number, since it uses as much as digits as its factorization.

121120330221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31000856280.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121120330221311 its reverse (113122033021121), we get a palindrome (234242363242432).

The spelling of 121120330221311 in words is "one hundred twenty-one trillion, one hundred twenty billion, three hundred thirty million, two hundred twenty-one thousand, three hundred eleven".