350111021 has 4 divisors (see below), whose sum is σ = 377042652. Its totient is φ = 323179392.

The previous prime is 350111017. The next prime is 350111023. The reversal of 350111021 is 120111053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18361225 + 331749796 = 4285^2 + 18214^2 .

It is a cyclic number.

It is not a de Polignac number, because 350111021 - 2² = 350111017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 350110987 and 350111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350111023) 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, 13465796 + ... + 13465821.

It is an arithmetic number, because the mean of its divisors is an integer number (94260663).

Almost surely, 2^350111021 is an apocalyptic number.

It is an amenable number.

350111021 is a deficient number, since it is larger than the sum of its proper divisors (26931631).

350111021 is a wasteful number, since it uses less digits than its factorization.

350111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26931630.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 350111021 is about 18711.2538596429. The cubic root of 350111021 is about 704.8043794389.

Adding to 350111021 its reverse (120111053), we get a palindrome (470222074).

The spelling of 350111021 in words is "three hundred fifty million, one hundred eleven thousand, twenty-one".