350221123 has 4 divisors (see below), whose sum is σ = 400252720. Its totient is φ = 300189528.

The previous prime is 350221121. The next prime is 350221147. The reversal of 350221123 is 321122053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321122053 = 7 ⋅45874579.

It is a cyclic number.

It is not a de Polignac number, because 350221123 - 2¹ = 350221121 is a prime.

It is a super-5 number, since 5×350221123⁵ (a number of 44 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 350221123.

It is not an unprimeable number, because it can be changed into a prime (350221121) 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, 25015788 + ... + 25015801.

It is an arithmetic number, because the mean of its divisors is an integer number (100063180).

Almost surely, 2^350221123 is an apocalyptic number.

350221123 is a deficient number, since it is larger than the sum of its proper divisors (50031597).

350221123 is an equidigital number, since it uses as much as digits as its factorization.

350221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50031596.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 350221123 is about 18714.1957615068. The cubic root of 350221123 is about 704.8782533761.

Adding to 350221123 its reverse (321122053), we get a palindrome (671343176).

The spelling of 350221123 in words is "three hundred fifty million, two hundred twenty-one thousand, one hundred twenty-three".