313430221 has 8 divisors (see below), whose sum is σ = 342579104. Its totient is φ = 285001200.

The previous prime is 313430203. The next prime is 313430267. The reversal of 313430221 is 122034313.

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 313430221 - 2¹¹ = 313428173 is a prime.

It is a super-2 number, since 2×313430221² = 196477006872217682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313470221) 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, 179055 + ... + 180796.

It is an arithmetic number, because the mean of its divisors is an integer number (42822388).

Almost surely, 2^313430221 is an apocalyptic number.

It is an amenable number.

313430221 is a deficient number, since it is larger than the sum of its proper divisors (29148883).

313430221 is a wasteful number, since it uses less digits than its factorization.

313430221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359931.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 313430221 is about 17703.9606020800. The cubic root of 313430221 is about 679.2770726824.

Adding to 313430221 its reverse (122034313), we get a palindrome (435464534).

The spelling of 313430221 in words is "three hundred thirteen million, four hundred thirty thousand, two hundred twenty-one".