355121230 has 16 divisors (see below), whose sum is σ = 645194160. Its totient is φ = 140720512.

The previous prime is 355121183. The next prime is 355121233. The reversal of 355121230 is 32121553.

It is a super-2 number, since 2×355121230² = 252222175993425800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355121233) 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, 164875 + ... + 167014.

It is an arithmetic number, because the mean of its divisors is an integer number (40324635).

Almost surely, 2^355121230 is an apocalyptic number.

355121230 is a deficient number, since it is larger than the sum of its proper divisors (290072930).

355121230 is a wasteful number, since it uses less digits than its factorization.

355121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332003.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 355121230 is about 18844.6605169740. The cubic root of 355121230 is about 708.1504662274.

Adding to 355121230 its reverse (32121553), we get a palindrome (387242783).

The spelling of 355121230 in words is "three hundred fifty-five million, one hundred twenty-one thousand, two hundred thirty".