220123320115 has 16 divisors (see below), whose sum is σ = 279726495552. Its totient is φ = 165715974144.

The previous prime is 220123320107. The next prime is 220123320173. The reversal of 220123320115 is 511023321022.

It is a cyclic number.

It is not a de Polignac number, because 220123320115 - 2³ = 220123320107 is a prime.

It is a super-2 number, since 2×220123320115² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416362 + ... + 783328.

It is an arithmetic number, because the mean of its divisors is an integer number (17482905972).

Almost surely, 2^220123320115 is an apocalyptic number.

220123320115 is a deficient number, since it is larger than the sum of its proper divisors (59603175437).

220123320115 is a wasteful number, since it uses less digits than its factorization.

220123320115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374046.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 220123320115 its reverse (511023321022), we get a palindrome (731146641137).

The spelling of 220123320115 in words is "two hundred twenty billion, one hundred twenty-three million, three hundred twenty thousand, one hundred fifteen".