220121110023123 has 8 divisors (see below), whose sum is σ = 293740827462288. Its totient is φ = 146624399633024.

The previous prime is 220121110023049. The next prime is 220121110023169. The reversal of 220121110023123 is 321320011121022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220121110023123 - 2²⁹ = 220120573152211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220121110023123.

It is not an unprimeable number, because it can be changed into a prime (220121110023623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30751758090 + ... + 30751765247.

It is an arithmetic number, because the mean of its divisors is an integer number (36717603432786).

Almost surely, 2^{220121110023123} is an apocalyptic number.

220121110023123 is a deficient number, since it is larger than the sum of its proper divisors (73619717439165).

220121110023123 is a wasteful number, since it uses less digits than its factorization.

220121110023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61503524533.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 220121110023123 its reverse (321320011121022), we get a palindrome (541441121144145).

The spelling of 220121110023123 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred ten million, twenty-three thousand, one hundred twenty-three".