121322120320223 has 4 divisors (see below), whose sum is σ = 121357296351600. Its totient is φ = 121286944288848.

The previous prime is 121322120320183. The next prime is 121322120320253. The reversal of 121322120320223 is 322023021223121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121322120320223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121322120320192 and 121322120320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322120320253) 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, 17588010515 + ... + 17588017412.

It is an arithmetic number, because the mean of its divisors is an integer number (30339324087900).

Almost surely, 2^{121322120320223} is an apocalyptic number.

121322120320223 is a deficient number, since it is larger than the sum of its proper divisors (35176031377).

121322120320223 is an equidigital number, since it uses as much as digits as its factorization.

121322120320223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35176031376.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121322120320223 its reverse (322023021223121), we get a palindrome (443345141543344).

The spelling of 121322120320223 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, one hundred twenty million, three hundred twenty thousand, two hundred twenty-three".